1. Filter type: Particulate filter, integrated filter A1/A1B1E1K1 (protection against organic gas, inorganic gas and steam, sulfur dioxide and other acidic gases, modules and organic nitrogen in modules) and other types of filter
2. Air volume: Starts when the user inhales (>=65L/min)
3. IP rating: IP54
4. Working temperature: -5℃ to 55℃ and other temperature environments
5. Noise: Operating noise is about 60dB

Battery performance

1. Use time: ≥8 hours
2. Charging time: 5 hours
3. Charging times: ≥500 times

Filtration efficiency

1. Anti-particle filter: filtration rate> 99.95%, filtering oily/non-oily particles larger than 0.185 microns
2. External filter cotton (optional): filtration rate> 95%, used to filter non-oily particulate pollutants such as dust and smoke