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Anonymous users2024-01-24It can't be airtight. In the air, carbon dioxide is very dense, and when it is still or the air velocity is not large, it will generally sink down and emit outward from the crack of the door near the ground, and other air will be replenished in other gaps. If it is really airtight, such a decoration is not good for the body, and unexpected things may happen, so be careful.
If you judge whether your room is airtight: close all your doors and windows, and when you open or close the door at a normal speed, you will feel resistance, which is more sealed. When you open or close the door at different speeds, you don't feel much resistance, or there is not much difference, indicating that your room is sealed properly, although rest assured.
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Anonymous users2024-01-23Answer: Don't burn charcoal inside, don't turn on the gas, it should be fine.
Here in Suzhou, Jiangsu Province, a set of solid wood doors is installed for 150 yuan, and the composite door is 120 A master has an average of 4 sets of doors a day.
The color of the anti-theft door is dark red, the bedroom door is white, what color is good for the anti-theft door cover I now order the bedroom door is white, the kitchen door cover is also white, the color of the anti-theft door is dark red, the person who made the door introduced that the door cover can be white, I am afraid of the contrast, I want to make a crimson door cover, I don't know if it will be ugly, The color of the door cover is generally the same as the color of the door. Your security door is dark red, if the door cover is white, it will be more beautiful and coordinated from the inside, but it will be more abrupt from the outside; If you choose red, it will look better from the outside. So, depending on which aspect you focus on, if you're looking at it for your own comfort, choose white, and if you're looking at it for an outdoor audience, it's recommended to be red.
Try to be red, if the opening is good, the meaning is good, the same as the threshold stone, the second is to match the anti-theft door, the third is the dark gray to put the door meaning is not good, it feels strange, the door cover is generally these three colors, dark red, beige, white, professional decoration for 30 years, you are worthy of faith.
In fact, the structure of the door mirror is very simple, consisting of two lenses, the concave lens outside the door, and the convex lens inside the door, but the principle of door mirror imaging also involves some optical knowledge.
There are many keys to the security door, you can lose one and let the locksmith help you open it, and then you can use other keys, or you can call other family members to come back and open the door.