[Seller]
Offer Simultaneous operation of suction and exhaust
Takes in outside fresh air and exhausts inside air to keep indoor air always clean and fresh. Solved the problem of negative pressure in conventional exhaust ventilator, and consequently increases the efficiency of ventilator - Indoors with luxurious decoration - Places giving out Smoke and Dust - Device for preventing airborne infection and an allergic disease - Places with heating using oil, gas and briquette - Farming facilities needed natural fresh air - Places controlling humidity, mold and bacteria storage house - Places protecting insect Patent #0205601 ISO 9000 Certification Price range : 20 USD / FOB Packaging : Box Quantity : 600pcs/20CT
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