This type of filter is used for the first filtration of fresh air in air conditioning systems, mainly filtering various foreign substances in the atmosphere (such as leaves, willow catkins, etc.).
| frame | Aluminum Frame |
| filter material | Black nylon mesh |
| Filtration efficiency | G1/G2 |
| Continuous operating temperature | ≤70℃ |
| Suggested final resistance | ≤200Pa |
| External dimensions | Rated air volume | Filtration efficiency | initial resistance |
备注：不同风速下，阻力值不同。特殊尺寸规格可依据客户要求定制
| ASHRAE52.2 | EN779 |
| MERV | G1 |
| MERV2-4 | G2 |
