{"id":1961,"date":"2026-07-13T20:18:31","date_gmt":"2026-07-13T12:18:31","guid":{"rendered":"https:\/\/hzgaozhen.com\/en\/?post_type=product&#038;p=1961"},"modified":"2026-07-26T02:38:05","modified_gmt":"2026-07-25T18:38:05","slug":"gzw-300l-mini-desiccant-dehumidifier","status":"publish","type":"product","link":"https:\/\/hzgaozhen.com\/en\/products\/gzw-300l-mini-desiccant-dehumidifier\/","title":{"rendered":"GZW-300L Mini Desiccant Dehumidifier"},"content":{"rendered":"<h2 class=\"PDq2pG_selectionAnchorContainer\" style=\"margin-top: 20px; margin-bottom: 15px;\" data-section-id=\"iuhk0e\">Product Overview<\/h2>\n<p><!-- \u5916\u5c42 Flex \u5bb9\u5668\uff0c\u5b9e\u73b0\u5de6\u53f3\u5206\u680f --><\/p>\n<div style=\"display: flex; flex-wrap: wrap; gap: 25px; align-items: flex-start; margin-bottom: 25px;\">\n<p><!-- \u5de6\u4fa7\u6587\u5b57\u533a\u57df (\u81ea\u9002\u5e94\u6491\u5f00) --><\/p>\n<div style=\"flex: 1; min-width: 300px;\">\n<p style=\"line-height: 1.6; margin-bottom: 12px;\">The <strong>GZW-300L <a style=\"color: #0066cc; text-decoration: none;\" href=\"https:\/\/hzgaozhen.com\/en\/products-category\/desiccant-dehumidifier\/mini-desiccant-dehumidifier\/\">Mini Desiccant Dehumidifier<\/a><\/strong> is a compact rotary desiccant dehumidification system engineered to maintain low humidity inside enclosed industrial equipment and technical rooms. By continuously removing moisture from the air, it effectively prevents condensation, corrosion, electrical leakage, insulation degradation and moisture-related equipment failures.<\/p>\n<p style=\"line-height: 1.6; margin-bottom: 12px;\">Unlike conventional refrigeration dehumidifiers, the GZW-300L Mini Desiccant Dehumidifier utilizes advanced desiccant rotor technology to deliver stable dehumidification even in low-temperature environments, making it ideal for year-round industrial applications.<\/p>\n<p style=\"line-height: 1.6; margin-bottom: 0;\">The GZW series also includes <strong>GZW-200L<\/strong> and <strong>GZW-400L<\/strong> models, allowing customers to select the most suitable capacity according to enclosure volume and humidity requirements.<\/p>\n<\/div>\n<p><!-- \u53f3\u4fa7\u89c6\u9891\u533a\u57df (\u56fa\u5b9a\u7a84\u5bbd\u5ea6\uff0c\u9632\u6b62\u7eb5\u5411\u62c9\u5f97\u8fc7\u957f) --><\/p>\n<div style=\"width: 240px; flex-shrink: 0; margin: 0 auto;\">\n<div style=\"width: 100%; aspect-ratio: 9\/16; border-radius: 12px; overflow: hidden; box-shadow: 0 4px 12px rgba(0,0,0,0.08);\"><iframe style=\"width: 100%; height: 100%; border: 0; display: block;\" title=\"GZW-300L Mini Desiccant Dehumidifier\" src=\"https:\/\/www.youtube.com\/embed\/fjUAkH6R4CI?rel=0\" allowfullscreen=\"allowfullscreen\"><br \/>\n<\/iframe><\/div>\n<\/div>\n<\/div>\n<hr style=\"border: 0; border-top: 1px solid #eee; margin: 20px 0;\" \/>\n<h2>Parameters<\/h2>\n<p><!-- \u7eaf\u9694\u79bb\u5bb9\u5668\uff1a\u5f7b\u5e95\u907f\u5f00\u5916\u90e8 CSS \u6c61\u67d3\uff0c\u4fdd\u8bc1\u624b\u673a\u7aef\u5de6\u53f3\u6ed1\u52a8\u65f6\u4e1d\u6ed1\u4e14\u4e0d\u6324\u538b\u53d8\u5f62 --><\/p>\n<div class=\"gz-freeze-frame\" style=\"width: 100% !important; overflow-x: auto !important; -webkit-overflow-scrolling: touch !important; box-sizing: border-box; margin: 0 auto; max-width: 1000px;\">\n<p><!-- \u7ec8\u6781\u8d85\u7d27\u51d1\u5e03\u5c40\uff1a\u5c06 min-width \u964d\u81f3 460px\uff0c\u6bd4\u4f8b\u4f18\u5316\u4e3a 22% : 26% : 26% : 26% --><\/p>\n<table style=\"border-collapse: separate !important; border-spacing: 0 !important; font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif; font-size: 11px; margin: 0 !important; color: #333; line-height: 1.3; width: 100% !important; min-width: 460px !important; display: table !important; table-layout: fixed !important; border-top: 1px solid #dcdcdc; border-left: 1px solid #dcdcdc; border-right: 1px solid #dcdcdc;\">\n<tbody style=\"display: table-row-group !important;\"><!-- \u8868\u683c\u5927\u6807\u9898 --><\/p>\n<tr style=\"background-color: #3b4252; color: #ffffff; font-weight: bold; text-align: center; display: table-row !important;\">\n<td style=\"border-bottom: 1px solid #dcdcdc; font-size: 13px; letter-spacing: 0.5px; padding: 10px 4px; display: table-cell !important; word-break: break-word !important; line-height: 1.4;\" colspan=\"4\">GZW-200L | GZW-300L | GZW-400L Mini Desiccant Dehumidifier Technical Specifications<\/td>\n<\/tr>\n<p><!-- \u8868\u5934\u884c (\u9996\u5217\u7cbe\u7b80\u4e3a22%\uff0c\u7ed9\u53f3\u4fa7\u4e09\u5217\u7559\u51fa\u540426%\u7684\u8d85\u5927\u7a7a\u95f4) --><\/p>\n<tr style=\"background-color: #f5f7fa; font-weight: bold; text-align: center; color: #4c566a; display: table-row !important;\">\n<td style=\"padding: 5px 4px; text-align: left; border-bottom: 1px solid #dcdcdc; border-right: 1px solid #c0c0c0; width: 22% !important; position: sticky !important; left: 0 !important; background: #f5f7fa !important; z-index: 10 !important; display: table-cell !important; white-space: nowrap !important;\">Parameter<\/td>\n<td style=\"padding: 5px 2px; border-bottom: 1px solid #dcdcdc; border-right: 1px solid #dcdcdc; width: 26% !important; display: table-cell !important; white-space: nowrap !important;\">GZW-200L<\/td>\n<td style=\"padding: 5px 2px; border-bottom: 1px solid #dcdcdc; border-right: 1px solid #dcdcdc; width: 26% !important; display: table-cell !important; white-space: nowrap !important;\">GZW-300L<\/td>\n<td style=\"padding: 5px 2px; border-bottom: 1px solid #dcdcdc; width: 26% !important; display: table-cell !important; white-space: nowrap !important;\">GZW-400L<\/td>\n<\/tr>\n<p><!-- \u9664\u6e7f\u91cf --><\/p>\n<tr style=\"text-align: center; display: table-row !important; background-color: #ffffff;\">\n<td style=\"padding: 5px 4px; text-align: left; font-weight: bold; border-bottom: 1px solid #dcdcdc; border-right: 1px solid #c0c0c0; position: sticky !important; left: 0 !important; background: #fafbfc !important; z-index: 9 !important; display: table-cell !important; white-space: nowrap !important;\">DEH Cap.<br \/>\n<small style=\"font-weight: normal; color: #666; font-size: 10px;\">(20\u2103,60%RH)<\/small><\/td>\n<td style=\"padding: 5px 2px; border-bottom: 1px solid #dcdcdc; border-right: 1px solid #dcdcdc; display: table-cell !important;\">0.62 kg\/h<\/td>\n<td style=\"padding: 5px 2px; border-bottom: 1px solid #dcdcdc; border-right: 1px solid #dcdcdc; display: table-cell !important;\">0.8 kg\/h<\/td>\n<td style=\"padding: 5px 2px; border-bottom: 1px solid #dcdcdc; display: table-cell !important;\">1.2 kg\/h<\/td>\n<\/tr>\n<p><!-- \u5904\u7406\u98ce\u91cf --><\/p>\n<tr style=\"text-align: center; display: table-row !important; background-color: #fcfdfe;\">\n<td style=\"padding: 5px 4px; text-align: left; font-weight: bold; border-bottom: 1px solid #dcdcdc; border-right: 1px solid #c0c0c0; position: sticky !important; left: 0 !important; background: #fafbfc !important; z-index: 9 !important; display: table-cell !important; white-space: nowrap !important;\">Process Air<\/td>\n<td style=\"padding: 5px 2px; border-bottom: 1px solid #dcdcdc; border-right: 1px solid #dcdcdc; display: table-cell !important; word-break: break-word !important;\">220m\u00b3\/h<br \/>\n<small style=\"color: #777;\">(200PA)<\/small><\/td>\n<td style=\"padding: 5px 2px; border-bottom: 1px solid #dcdcdc; border-right: 1px solid #dcdcdc; display: table-cell !important; word-break: break-word !important;\">320m\u00b3\/h<br \/>\n<small style=\"color: #777;\">(200PA)<\/small><\/td>\n<td style=\"padding: 5px 2px; border-bottom: 1px solid #dcdcdc; display: table-cell !important; word-break: break-word !important;\">420m\u00b3\/h<br \/>\n<small style=\"color: #777;\">(200PA)<\/small><\/td>\n<\/tr>\n<p><!-- \u518d\u751f\u98ce\u91cf --><\/p>\n<tr style=\"text-align: center; display: table-row !important; background-color: #ffffff;\">\n<td style=\"padding: 5px 4px; text-align: left; font-weight: bold; border-bottom: 1px solid #dcdcdc; border-right: 1px solid #c0c0c0; position: sticky !important; left: 0 !important; background: #fafbfc !important; z-index: 9 !important; display: table-cell !important; white-space: nowrap !important;\">Reg. Air<\/td>\n<td style=\"padding: 5px 2px; border-bottom: 1px solid #dcdcdc; border-right: 1px solid #dcdcdc; display: table-cell !important; word-break: break-word !important;\">60m\u00b3\/h<br \/>\n<small style=\"color: #777;\">(150PA)<\/small><\/td>\n<td style=\"padding: 5px 2px; border-bottom: 1px solid #dcdcdc; border-right: 1px solid #dcdcdc; display: table-cell !important; word-break: break-word !important;\">100m\u00b3\/h<br \/>\n<small style=\"color: #777;\">(150PA)<\/small><\/td>\n<td style=\"padding: 5px 2px; border-bottom: 1px solid #dcdcdc; display: table-cell !important; word-break: break-word !important;\">130m\u00b3\/h<br \/>\n<small style=\"color: #777;\">(150PA)<\/small><\/td>\n<\/tr>\n<p><!-- \u5de5\u4f5c\u6e29\u5ea6 --><\/p>\n<tr style=\"text-align: center; display: table-row !important; background-color: #fcfdfe;\">\n<td style=\"padding: 5px 4px; text-align: left; font-weight: bold; border-bottom: 1px solid #dcdcdc; border-right: 1px solid #c0c0c0; position: sticky !important; left: 0 !important; background: #fafbfc !important; z-index: 9 !important; display: table-cell !important; white-space: nowrap !important;\">Op. Temp.<\/td>\n<td style=\"padding: 5px 2px; border-bottom: 1px solid #dcdcdc; display: table-cell !important;\" colspan=\"3\">-20\u00b0C \uff5e 56\u00b0C<\/td>\n<\/tr>\n<p><!-- \u7bb1\u4f53\u6750\u8d28 --><\/p>\n<tr style=\"text-align: center; display: table-row !important; background-color: #ffffff;\">\n<td style=\"padding: 5px 4px; text-align: left; font-weight: bold; border-bottom: 1px solid #dcdcdc; border-right: 1px solid #c0c0c0; position: sticky !important; left: 0 !important; background: #fafbfc !important; z-index: 9 !important; display: table-cell !important; white-space: nowrap !important;\">Body Material<\/td>\n<td style=\"padding: 5px 2px; border-bottom: 1px solid #dcdcdc; display: table-cell !important;\" colspan=\"3\">SPCC\/SUS304<\/td>\n<\/tr>\n<p><!-- \u63a7\u5236\u5668\u7c7b\u578b --><\/p>\n<tr style=\"text-align: center; display: table-row !important; background-color: #fcfdfe;\">\n<td style=\"padding: 5px 4px; text-align: left; font-weight: bold; border-bottom: 1px solid #dcdcdc; border-right: 1px solid #c0c0c0; position: sticky !important; left: 0 !important; background: #fafbfc !important; z-index: 9 !important; display: table-cell !important; white-space: nowrap !important;\">Controller Type<\/td>\n<td style=\"padding: 5px 2px; border-bottom: 1px solid #dcdcdc; display: table-cell !important;\" colspan=\"3\">PCB+86-Type LCD<\/td>\n<\/tr>\n<p><!-- \u521d\u6548\u8fc7\u6ee4\u5668 --><\/p>\n<tr style=\"text-align: center; display: table-row !important; background-color: #ffffff;\">\n<td style=\"padding: 5px 4px; text-align: left; font-weight: bold; border-bottom: 1px solid #dcdcdc; border-right: 1px solid #c0c0c0; position: sticky !important; left: 0 !important; background: #fafbfc !important; z-index: 9 !important; display: table-cell !important; white-space: nowrap !important;\">Primary Filter<\/td>\n<td style=\"padding: 5px 2px; border-bottom: 1px solid #dcdcdc; border-right: 1px solid #dcdcdc; display: table-cell !important;\">G4<\/td>\n<td style=\"padding: 5px 2px; border-bottom: 1px solid #dcdcdc; border-right: 1px solid #dcdcdc; display: table-cell !important;\">G4<\/td>\n<td style=\"padding: 5px 2px; border-bottom: 1px solid #dcdcdc; display: table-cell !important;\">G4<\/td>\n<\/tr>\n<p><!-- \u52a0\u70ed\u5668\u7c7b\u578b --><\/p>\n<tr style=\"text-align: center; display: table-row !important; background-color: #fcfdfe;\">\n<td style=\"padding: 5px 4px; text-align: left; font-weight: bold; border-bottom: 1px solid #dcdcdc; border-right: 1px solid #c0c0c0; position: sticky !important; left: 0 !important; background: #fafbfc !important; z-index: 9 !important; display: table-cell !important; white-space: nowrap !important;\">Heater Type<\/td>\n<td style=\"padding: 5px 2px; border-bottom: 1px solid #dcdcdc; border-right: 1px solid #dcdcdc; display: table-cell !important;\">PTC<\/td>\n<td style=\"padding: 5px 2px; border-bottom: 1px solid #dcdcdc; border-right: 1px solid #dcdcdc; display: table-cell !important;\">PTC<\/td>\n<td style=\"padding: 5px 2px; border-bottom: 1px solid #dcdcdc; display: table-cell !important;\">PTC<\/td>\n<\/tr>\n<p><!-- \u6700\u5927\u8f93\u5165\u529f\u7387 --><\/p>\n<tr style=\"text-align: center; display: table-row !important; background-color: #ffffff;\">\n<td style=\"padding: 5px 4px; text-align: left; font-weight: bold; border-bottom: 1px solid #dcdcdc; border-right: 1px solid #c0c0c0; position: sticky !important; left: 0 !important; background: #fafbfc !important; z-index: 9 !important; display: table-cell !important; white-space: nowrap !important;\">Max. Power<\/td>\n<td style=\"padding: 5px 2px; border-bottom: 1px solid #dcdcdc; border-right: 1px solid #dcdcdc; display: table-cell !important;\">1.85KW<\/td>\n<td style=\"padding: 5px 2px; border-bottom: 1px solid #dcdcdc; border-right: 1px solid #dcdcdc; display: table-cell !important;\">2.0KW<\/td>\n<td style=\"padding: 5px 2px; border-bottom: 1px solid #dcdcdc; display: table-cell !important;\">2.35KW<\/td>\n<\/tr>\n<p><!-- \u6700\u5927\u7535\u6d41 --><\/p>\n<tr style=\"text-align: center; display: table-row !important; background-color: #fcfdfe;\">\n<td style=\"padding: 5px 4px; text-align: left; font-weight: bold; border-bottom: 1px solid #dcdcdc; border-right: 1px solid #c0c0c0; position: sticky !important; left: 0 !important; background: #fafbfc !important; z-index: 9 !important; display: table-cell !important; white-space: nowrap !important;\">Max. Current<\/td>\n<td style=\"padding: 5px 2px; border-bottom: 1px solid #dcdcdc; border-right: 1px solid #dcdcdc; display: table-cell !important;\">10A<\/td>\n<td style=\"padding: 5px 2px; border-bottom: 1px solid #dcdcdc; border-right: 1px solid #dcdcdc; display: table-cell !important;\">10A<\/td>\n<td style=\"padding: 5px 2px; border-bottom: 1px solid #dcdcdc; display: table-cell !important;\">13.5A<\/td>\n<\/tr>\n<p><!-- \u7535\u6e90 --><\/p>\n<tr style=\"text-align: center; display: table-row !important; background-color: #ffffff;\">\n<td style=\"padding: 5px 4px; text-align: left; font-weight: bold; border-bottom: 1px solid #dcdcdc; border-right: 1px solid #c0c0c0; position: sticky !important; left: 0 !important; background: #fafbfc !important; z-index: 9 !important; display: table-cell !important; white-space: nowrap !important;\">Power Supply<\/td>\n<td style=\"padding: 5px 2px; border-bottom: 1px solid #dcdcdc; display: table-cell !important;\" colspan=\"3\">220V-240V\/1PH\/50hz or 60hz<\/td>\n<\/tr>\n<p><!-- \u51c0\u91cd --><\/p>\n<tr style=\"text-align: center; display: table-row !important; background-color: #fcfdfe;\">\n<td style=\"padding: 5px 4px; text-align: left; font-weight: bold; border-right: 1px solid #c0c0c0; position: sticky !important; left: 0 !important; background: #fafbfc !important; z-index: 9 !important; display: table-cell !important; white-space: nowrap !important;\">Net Weight<\/td>\n<td style=\"padding: 5px 2px; border-right: 1px solid #dcdcdc; display: table-cell !important;\">30kg<\/td>\n<td style=\"padding: 5px 2px; border-right: 1px solid #dcdcdc; display: table-cell !important;\">34kg<\/td>\n<td style=\"padding: 5px 2px; display: table-cell !important;\">38kg<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<h2 data-section-id=\"1ma7m6t\" data-start=\"2239\" data-end=\"2254\"><strong>Dimension:<\/strong><\/h2>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-1967 size-full\" style=\"border: 1px solid #cfcfcf; padding: 6px; background: #fff; box-sizing: border-box;\" src=\"https:\/\/hzgaozhen.com\/en\/wp-content\/uploads\/2026\/07\/GZW-200L300L400L.webp\" alt=\"GZW-200L Mini Desiccant Dehumidifier Dimension\" width=\"1884\" height=\"1082\" srcset=\"https:\/\/hzgaozhen.com\/en\/wp-content\/uploads\/2026\/07\/GZW-200L300L400L.webp 1884w, https:\/\/hzgaozhen.com\/en\/wp-content\/uploads\/2026\/07\/GZW-200L300L400L-300x172.webp 300w, https:\/\/hzgaozhen.com\/en\/wp-content\/uploads\/2026\/07\/GZW-200L300L400L-1024x588.webp 1024w, https:\/\/hzgaozhen.com\/en\/wp-content\/uploads\/2026\/07\/GZW-200L300L400L-768x441.webp 768w, https:\/\/hzgaozhen.com\/en\/wp-content\/uploads\/2026\/07\/GZW-200L300L400L-1536x882.webp 1536w, https:\/\/hzgaozhen.com\/en\/wp-content\/uploads\/2026\/07\/GZW-200L300L400L-400x230.webp 400w, https:\/\/hzgaozhen.com\/en\/wp-content\/uploads\/2026\/07\/GZW-200L300L400L-600x345.webp 600w\" sizes=\"auto, (max-width: 1884px) 100vw, 1884px\" \/><\/p>\n<h2 data-section-id=\"1ma7m6t\" data-start=\"2239\" data-end=\"2254\">Key Features<\/h2>\n<ul data-start=\"2256\" data-end=\"2692\">\n<li data-section-id=\"8i6o7f\" data-start=\"2256\" data-end=\"2296\">High-efficiency rotary desiccant rotor<\/li>\n<li data-section-id=\"16gr7h0\" data-start=\"2297\" data-end=\"2335\">Compact design for easy installation<\/li>\n<li data-section-id=\"n4op68\" data-start=\"2336\" data-end=\"2371\">Continuous low-humidity operation<\/li>\n<li data-section-id=\"gax9c6\" data-start=\"2372\" data-end=\"2423\">Stable performance under low ambient temperatures<\/li>\n<li data-section-id=\"1gcogmz\" data-start=\"2424\" data-end=\"2463\">Low maintenance and long service life<\/li>\n<li data-section-id=\"19clwmr\" data-start=\"2464\" data-end=\"2526\">PTC ceramic regeneration heater with high thermal efficiency<\/li>\n<li data-section-id=\"w4j01t\" data-start=\"2527\" data-end=\"2567\">Intelligent temperature control system<\/li>\n<li data-section-id=\"xtci8f\" data-start=\"2568\" data-end=\"2607\">Reliable anti-condensation protection<\/li>\n<li data-section-id=\"15nbpb8\" data-start=\"2608\" data-end=\"2654\">Suitable for unattended industrial operation<\/li>\n<li data-section-id=\"lgocxx\" data-start=\"2655\" data-end=\"2692\">Multiple capacity options available<\/li>\n<\/ul>\n<hr data-start=\"2694\" data-end=\"2697\" \/>\n<h2 data-section-id=\"164os46\" data-start=\"2699\" data-end=\"2722\">Typical Applications<\/h2>\n<p data-start=\"2724\" data-end=\"2854\">The GZW-300L Mini Desiccant Dehumidifier is widely used in industrial environments requiring reliable humidity control, including:<\/p>\n<ul data-start=\"2856\" data-end=\"3300\">\n<li data-section-id=\"1tyuzpl\" data-start=\"2856\" data-end=\"2885\">Electrical switchgear rooms<\/li>\n<li data-section-id=\"1yuukw8\" data-start=\"2886\" data-end=\"2915\">Power distribution cabinets<\/li>\n<li data-section-id=\"gkbkck\" data-start=\"2916\" data-end=\"2943\">Electrical control panels<\/li>\n<li data-section-id=\"h9tfao\" data-start=\"2944\" data-end=\"2973\">Motor Control Centers (MCC)<\/li>\n<li data-section-id=\"1od1iy5\" data-start=\"2974\" data-end=\"2998\">Communication cabinets<\/li>\n<li data-section-id=\"14oyv4v\" data-start=\"2999\" data-end=\"3018\">Transformer rooms<\/li>\n<li data-section-id=\"1id1a5j\" data-start=\"3019\" data-end=\"3040\">Wind turbine towers<\/li>\n<li data-section-id=\"1fdutpg\" data-start=\"3041\" data-end=\"3075\">Wind turbine electrical cabinets<\/li>\n<li data-section-id=\"rxggoz\" data-start=\"3076\" data-end=\"3108\">Offshore electrical enclosures<\/li>\n<li data-section-id=\"ghug6w\" data-start=\"3109\" data-end=\"3156\">Battery energy storage system (BESS) cabinets<\/li>\n<li data-section-id=\"1kg8xw8\" data-start=\"3157\" data-end=\"3178\">Instrument cabinets<\/li>\n<li data-section-id=\"18b93p1\" data-start=\"3179\" data-end=\"3208\">Automation control cabinets<\/li>\n<li data-section-id=\"yjpizu\" data-start=\"3209\" data-end=\"3234\">Railway signal cabinets<\/li>\n<li data-section-id=\"ffdell\" data-start=\"3235\" data-end=\"3265\">Telecommunications equipment<\/li>\n<li data-section-id=\"1sojeiw\" data-start=\"3266\" data-end=\"3300\">Industrial electrical enclosures<\/li>\n<\/ul>\n<hr data-start=\"3302\" data-end=\"3305\" \/>\n<h2 data-section-id=\"yt2ucu\" data-start=\"3307\" data-end=\"3353\">Why Choose a Rotary Desiccant Dehumidifier?<\/h2>\n<p data-start=\"3355\" data-end=\"3518\">Traditional compressor dehumidifiers lose efficiency in cool or enclosed environments and are unsuitable for applications requiring continuous moisture protection.<\/p>\n<p data-start=\"3520\" data-end=\"3852\">The GZW-300L Mini Desiccant Dehumidifier employs a continuously rotating silica gel rotor that adsorbs moisture from the process air while simultaneously regenerating the desiccant using heated air. This design ensures consistent humidity control regardless of ambient temperature and enables reliable operation throughout the year.<\/p>\n<hr data-start=\"3854\" data-end=\"3857\" \/>\n<h2 data-section-id=\"1p8ivm\" data-start=\"3859\" data-end=\"3879\">Working Principle<\/h2>\n<p data-start=\"3881\" data-end=\"3938\">The unit operates using a dual-airflow desiccant process:<\/p>\n<ol data-start=\"3940\" data-end=\"4261\">\n<li data-section-id=\"igna49\" data-start=\"3940\" data-end=\"4026\">Process air passes through the rotating desiccant rotor where moisture is adsorbed.<\/li>\n<li data-section-id=\"1w6tdzj\" data-start=\"4027\" data-end=\"4079\">Dry air is supplied into the protected enclosure.<\/li>\n<li data-section-id=\"1pdfn2s\" data-start=\"4080\" data-end=\"4128\">Regeneration air is heated by the PTC heater.<\/li>\n<li data-section-id=\"ch0026\" data-start=\"4129\" data-end=\"4187\">Moisture is removed from the rotor during regeneration.<\/li>\n<li data-section-id=\"6k0e7o\" data-start=\"4188\" data-end=\"4261\">The regenerated rotor continuously repeats the dehumidification cycle.<\/li>\n<\/ol>\n<p data-start=\"4263\" data-end=\"4349\">This continuous process delivers stable low-humidity protection with high reliability.<\/p>\n<hr data-start=\"4351\" data-end=\"4354\" \/>\n<h2 data-section-id=\"1344z7h\" data-start=\"4356\" data-end=\"4369\">Advantages<\/h2>\n<ul data-start=\"4371\" data-end=\"4702\">\n<li data-section-id=\"1d0rbam\" data-start=\"4371\" data-end=\"4422\">Prevents condensation inside electrical equipment<\/li>\n<li data-section-id=\"1st35vc\" data-start=\"4423\" data-end=\"4454\">Protects insulation materials<\/li>\n<li data-section-id=\"1gibptz\" data-start=\"4455\" data-end=\"4494\">Reduces corrosion of metal components<\/li>\n<li data-section-id=\"1ekdxho\" data-start=\"4495\" data-end=\"4527\">Extends equipment service life<\/li>\n<li data-section-id=\"od6yjt\" data-start=\"4528\" data-end=\"4562\">Improves operational reliability<\/li>\n<li data-section-id=\"18cx896\" data-start=\"4563\" data-end=\"4583\">Low operating cost<\/li>\n<li data-section-id=\"1l1czv0\" data-start=\"4584\" data-end=\"4603\">Compact footprint<\/li>\n<li data-section-id=\"10qidiy\" data-start=\"4604\" data-end=\"4623\">Easy installation<\/li>\n<li data-section-id=\"1itns3o\" data-start=\"4624\" data-end=\"4657\">Continuous unattended operation<\/li>\n<li data-section-id=\"1ld0oz\" data-start=\"4658\" data-end=\"4702\">Suitable for harsh industrial environments<\/li>\n<\/ul>\n<hr data-start=\"4973\" data-end=\"4976\" \/>\n<h2 data-section-id=\"ef99d4\" data-start=\"4978\" data-end=\"5004\">Optional Configurations<\/h2>\n<ul data-start=\"5006\" data-end=\"5209\">\n<li data-section-id=\"1tg5pvu\" data-start=\"5006\" data-end=\"5031\">Stainless steel housing<\/li>\n<li data-section-id=\"1q7wqmv\" data-start=\"5032\" data-end=\"5061\">Digital humidity controller<\/li>\n<li data-section-id=\"hqfppc\" data-start=\"5062\" data-end=\"5081\">Remote monitoring<\/li>\n<li data-section-id=\"1rrc9el\" data-start=\"5082\" data-end=\"5112\">RS485 \/ Modbus communication<\/li>\n<li data-section-id=\"18fkjqv\" data-start=\"5113\" data-end=\"5134\">Custom power supply<\/li>\n<li data-section-id=\"1r5ldjy\" data-start=\"5135\" data-end=\"5152\">HEPA pre-filter<\/li>\n<li data-section-id=\"x7whct\" data-start=\"5153\" data-end=\"5179\">High-temperature version<\/li>\n<li data-section-id=\"1yxzj2t\" data-start=\"5180\" data-end=\"5209\">Corrosion-resistant coating<\/li>\n<\/ul>\n<hr data-start=\"5211\" data-end=\"5214\" \/>\n<h2 data-section-id=\"1o7rnpt\" data-start=\"5216\" data-end=\"5238\">Why Choose GOZ?<\/h2>\n<p data-start=\"5240\" data-end=\"5470\">As a professional manufacturer of industrial desiccant dehumidification systems, GOZ provides customized humidity control solutions for electrical infrastructure, renewable energy, telecommunications and industrial automation.<\/p>\n<p data-start=\"5472\" data-end=\"5646\">Every unit is designed for reliable long-term operation with high-quality components, strict quality control and flexible customization to meet project-specific requirements.<\/p>\n<hr data-start=\"5648\" data-end=\"5651\" \/>\n<h2 data-section-id=\"9csfd8\" data-start=\"5653\" data-end=\"5667\">FAQ<\/h2>\n<h3 data-section-id=\"18k6cl6\" data-start=\"5669\" data-end=\"5731\">What is the GZW-300L Mini Desiccant Dehumidifier used for?<\/h3>\n<p data-start=\"5733\" data-end=\"5890\">It is designed to control humidity inside electrical cabinets, switchgear rooms, control panels, wind turbine towers and other enclosed industrial equipment.<\/p>\n<hr data-start=\"5892\" data-end=\"5895\" \/>\n<h3 data-section-id=\"104mqok\" data-start=\"5897\" data-end=\"5972\">Why use a desiccant dehumidifier instead of a refrigerant dehumidifier?<\/h3>\n<p data-start=\"5974\" data-end=\"6129\">Desiccant dehumidifiers provide stable moisture removal even at low temperatures and low humidity levels where refrigeration systems become less effective.<\/p>\n<hr data-start=\"6131\" data-end=\"6134\" \/>\n<h3 data-section-id=\"7h68no\" data-start=\"6136\" data-end=\"6178\">Can the GZW-300L Mini Desiccant Dehumidifier operate continuously?<\/h3>\n<p data-start=\"6180\" data-end=\"6276\">Yes. It is designed for 24\/7 industrial operation with continuous rotary desiccant regeneration.<\/p>\n<hr data-start=\"6278\" data-end=\"6281\" \/>\n<h3 data-section-id=\"ojmoi7\" data-start=\"6283\" data-end=\"6344\">Is the GZW series suitable for wind turbine applications?<\/h3>\n<p data-start=\"6346\" data-end=\"6495\">Yes. The GZW series is widely used in wind turbine towers and electrical cabinets to prevent condensation and protect sensitive electrical equipment.<\/p>\n<p data-start=\"1808\" data-end=\"2208\">For more information about humidity control standards,please refer to <a href=\"https:\/\/www.ashrae.org\/\" target=\"_blank\" rel=\"noopener\">ASHRAE<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p style=\"margin-bottom: 12px; line-height: 1.4;\"><strong style=\"color: #333;\">The GZW-300L Mini Desiccant Dehumidifier<\/strong> is a compact, highly efficient rotary desiccant system engineered to maintain low humidity inside enclosed electrical and industrial spaces.<\/p>\n<div class=\"compact-list\">\n<ul>\n<li><strong style=\"color: #333;\">Outstanding Performance<\/strong>: 0.8 kg\/h dehumidification capacity.<\/li>\n<li><strong style=\"color: #333;\">Wide Temp Range<\/strong>: Works flawlessly from -20\u00b0C to +56\u00b0C.<\/li>\n<li><strong style=\"color: #333;\">Premium Rotor Technology<\/strong>: Equipped with an advanced silica gel rotor (no freezing).<\/li>\n<li><strong style=\"color: #333;\">Compact &amp; Portable<\/strong>: Equipped with heavy-duty casters and carrying handles for easy mobility.<\/li>\n<li><strong style=\"color: #333;\">Applications<\/strong>: Ideal for wind turbine towers, electrical cabinets, laboratories, and communication enclosures.<\/li>\n<\/ul>\n<\/div>\n","protected":false},"featured_media":1962,"template":"","meta":{"_uag_custom_page_level_css":""},"product_brand":[],"product_cat":[483],"product_tag":[242,485,484,486,487,176],"class_list":["post-1961","product","type-product","status-publish","has-post-thumbnail","product_cat-mini-desiccant-dehumidifier","product_tag-compact-desiccant-dehumidifier","product_tag-gzw-200l-mini-desiccant-dehumidifier","product_tag-gzw-300l-mini-desiccant-dehumidifier","product_tag-gzw-400l-mini-desiccant-dehumidifier","product_tag-industrial-mini-dehumidifier","product_tag-mini-desiccant-dehumidifier","first","instock","taxable","shipping-taxable","product-type-simple"],"uagb_featured_image_src":{"full":["https:\/\/hzgaozhen.com\/en\/wp-content\/uploads\/2026\/07\/GZW-300LGZW-400L-Desiccant-Dehumidifier.webp",1682,1316,false],"thumbnail":["https:\/\/hzgaozhen.com\/en\/wp-content\/uploads\/2026\/07\/GZW-300LGZW-400L-Desiccant-Dehumidifier-150x150.webp",150,150,true],"medium":["https:\/\/hzgaozhen.com\/en\/wp-content\/uploads\/2026\/07\/GZW-300LGZW-400L-Desiccant-Dehumidifier-300x235.webp",300,235,true],"medium_large":["https:\/\/hzgaozhen.com\/en\/wp-content\/uploads\/2026\/07\/GZW-300LGZW-400L-Desiccant-Dehumidifier-768x601.webp",768,601,true],"large":["https:\/\/hzgaozhen.com\/en\/wp-content\/uploads\/2026\/07\/GZW-300LGZW-400L-Desiccant-Dehumidifier-1024x801.webp",1024,801,true],"1536x1536":["https:\/\/hzgaozhen.com\/en\/wp-content\/uploads\/2026\/07\/GZW-300LGZW-400L-Desiccant-Dehumidifier-1536x1202.webp",1536,1202,true],"2048x2048":["https:\/\/hzgaozhen.com\/en\/wp-content\/uploads\/2026\/07\/GZW-300LGZW-400L-Desiccant-Dehumidifier.webp",1682,1316,false],"woocommerce_archive_thumbnail":["https:\/\/hzgaozhen.com\/en\/wp-content\/uploads\/2026\/07\/GZW-300LGZW-400L-Desiccant-Dehumidifier-400x313.webp",400,313,true],"woocommerce_thumbnail":["https:\/\/hzgaozhen.com\/en\/wp-content\/uploads\/2026\/07\/GZW-300LGZW-400L-Desiccant-Dehumidifier-400x400.webp",400,400,true],"woocommerce_single":["https:\/\/hzgaozhen.com\/en\/wp-content\/uploads\/2026\/07\/GZW-300LGZW-400L-Desiccant-Dehumidifier-600x469.webp",600,469,true],"woocommerce_gallery_thumbnail":["https:\/\/hzgaozhen.com\/en\/wp-content\/uploads\/2026\/07\/GZW-300LGZW-400L-Desiccant-Dehumidifier-100x100.webp",100,100,true]},"uagb_author_info":{"display_name":"ginfreeman5","author_link":"https:\/\/hzgaozhen.com\/en\/author\/"},"uagb_comment_info":0,"uagb_excerpt":"The GZW-300L Mini Desiccant Dehumidifier is a compact, highly efficient rotary desiccant system engineered to maintain low humidity inside enclosed electrical and industrial spaces. Outstanding Performance: 0.8 kg\/h dehumidification capacity. Wide Temp Range: Works flawlessly from -20\u00b0C to +56\u00b0C. Premium Rotor Technology: Equipped with an advanced silica gel rotor (no freezing). Compact &amp; Portable: Equipped&hellip;","_links":{"self":[{"href":"https:\/\/hzgaozhen.com\/en\/wp-json\/wp\/v2\/product\/1961","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/hzgaozhen.com\/en\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/hzgaozhen.com\/en\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/hzgaozhen.com\/en\/wp-json\/wp\/v2\/media\/1962"}],"wp:attachment":[{"href":"https:\/\/hzgaozhen.com\/en\/wp-json\/wp\/v2\/media?parent=1961"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/hzgaozhen.com\/en\/wp-json\/wp\/v2\/product_brand?post=1961"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/hzgaozhen.com\/en\/wp-json\/wp\/v2\/product_cat?post=1961"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/hzgaozhen.com\/en\/wp-json\/wp\/v2\/product_tag?post=1961"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}