Medium efficiency air filter air filter box features ▲ fastening structure, longer life expectancy ▲ resistance, high dust holding capacity air volume ▲ ▲ widely used air-conditioning and ventilation systems centralized intermediate filtration Materials and operating conditions ▲ box timber : aluminum or galvanized steel frame ▲ divider: plastic coated mesh inserts ▲: ▲ aluminum mesh or galvanized mesh filter Material: Non-woven ▲ new composite filter material color: F5 (White) 45% (pale yellow ), F6 (green) 65% (orange), F7 (pink) 85% (violet), F8 (pale yellow) 95% (yellow) ▲ Seal: ethyl acetate ▲ seals: polyurethane rubber ▲ Use the highest temperature, humidity: 80 ℃, 80% Type size and other parameters Model Dimensions (mm) Rated air volume (m3 / h) Initial resistance (Pa) Efficiency (level) Fold the filter color number TH-ZXX-13 495 × 295 × 295 1300m3 / h 50 Pa F5 55 Pa F6 60 Pa F7 65 Pa F8 40-50% F5 60-70% F6 75-85% F7 85-95% F8 (colorimetry) pink white F5 F6 F7 Green yellow F8 8 TH-ZXX-22 495 × 495 × 295 2200m3 / h 10 TH-ZXX- 16 595 × 295 × 295 1600m3 / h 14 TH-ZXX- 27 595 × 495 × 295 2700m3 / h 14 TH-ZXX- 32 595 × 595 × 295 3200m3 / h 18 * can be customized according to user requirements root to different specifications of filters