During the COVID-19 Pandemic, it is extremely important to observe the rules of respiratory safety: keep a distance of at least 1.5 meters, apply a medical […]
The classroom is the main place for students to study every day. The air quality in the classroom is directly related to the students’ physical and […]
Now the winter is coming. Everyone knows what it’s like in a cold winter – sitting in a stuffy house because we’re obsessed with ‘keeping heat in’. Single […]
This winter, there was widespread rain and snow across the country, and the temperature gradually dropped after the beginning of winter. Both the southern and northern […]
The carbon filter is filled with activated carbon (charcoal) and filled with pores. Organic particles containing the smell of plant growth will be attracted by these […]