You haven't installed the door bottom sealing brush yet, have you? _common problem

Many residents will install a brush under the door to prevent insects, ants and mice, but you know that this is only one of its functions. Don't underestimate this brush, it's more useful. If you don't believe me, look at it: First of all, it has the function of sealing and blocking dust. The tight brush can prevent dust from entering the indoor space. This effect is especially obvious in areas with wind and sandstorms. It can effectively block the dust and sand caused by sandstorms from entering the room, keeping the room clean and tidy. Secondly, it has insulation against cold and heat. , The role of energy saving and environmental protection. It is hot in summer, and the indoor air conditioner needs to be turned on to cool down. The air-conditioning blown by the air conditioner will 'slide' away from under the door. If a suitable brush is installed on the door seam, it can effectively prevent 98.5% of the air from being lost. The cold in winter also prevents the cold wind from blowing into the warm room, and turning on the heating can also prevent the loss of heating. Such brushes are used on the screen doors of buses, many large cold storages, and subway and high-speed trains. The other is to reduce noise. Noise will be introduced into the room through the gap of the door gap, and it will affect our sleep at night. At this time, the brush installed under the door can play a role in sound insulation. It can attenuate the sound by decibels. Of course, its effect It's not as good as soundproofing equipment, but it can effectively reduce noise. Didn't you expect that this brush that 'hides' in the crack of the door will be so useful? But really, a small brush, great use!