Blowers Blowers manufacturers manufacturers _ Company Name: Henan Hongji Blower Co., Ltd. Company website: www.guolufengji188.com company sales hotline: 0394-7892627 15518086290 QQ: 445528270 also use the environment and have a great relationship. Indoor channel sealed, pumping force; poor sealing, pumping force is small. This is because, when there are multiple air intake passage, it first and the recent formation of air convection air intake, while the channel farther away from the fan inlet intake air will be very small. That is, the emergence of airflow short circuit. When in use, must take away from the nearest fan windows, doors shutting blocked (recently ran a little bit of the wind, it will seriously affect the efficiency of the fan), the fan from the proximal half of all land within the side windows, Day side closed, fully open distal end portion, this can create a great wind speed in the channel, is conducive to the intermediate portion of the ventilation and cooling.