Nispira Carbon Pre Filter A 18150 For Honeywell Air Purifier HPA5300 Series, HRF-AP1, HPA300, HPA100, HPA250, HPA030, HPA200, HPA020 Round, QuietCare, SilentComfort Item Package Quantity:2 engineered to withstand sudden temperature

engineered to withstand sudden temperature changes from −30 °C to +150 °C without cracking

it supports consistent airflow and filtration performance when replaced on a regular schedule

Preliminary filter captures visible dust and hair to extend the filter life

Recommended replacement every 6 months

Compatible with original Proton Pure air filter

Nispira Carbon Pre Filter A 18150 For Honeywell Air Purifier HPA5300 Series, HRF-AP1, HPA300, HPA100, HPA250, HPA030, HPA200, HPA020 Round, QuietCare, SilentComfort Item Package Quantity:2 engineered to withstand sudden temperaturePremium aftermarket universal activated carbon pre filter compatible with Filter A HRF AP1 It fits Honeywell model: HPA5300 InSight Series, HPA020 series, HPA030 series, HA090 series, HPA090 series, HA100 series, HPA100 series, HPA200 series, HPA250 series, HA300 series, HPA300 series, HPA3100 series, HPA5100 HPA5300 series, 10500 series, 10590 series, 11150 series, 12500 series, 13300 series, 13503, 13520 series, 13530 series, 14500 series, 17000