There are many testing units in the market, you can find them online for testing. They are all tested by professional testing equipment, and the results are credible. Datong Juncheng indoor air testing Center handled it well. Routine tests include formaldehyde, benzene, toluene, xylene and TVOC. The most harmful is benzene, which is soluble in blood and cannot be excreted by metabolism.

It's best not to trust those pineapples, vinegar and the like. It just masks some smells and cannot be removed. Moreover, pineapples will rot and have germs if they are kept for a long time. At the same time, the value of TVOC will increase, which will reduce people's immunity. And formaldehyde is colorless and odorless, and you can't get rid of those things at all.

Put some activated carbon in it. There are charcoal bags in the supermarket, but when you buy them, pay attention to the packaging, not the supermarket. It's not easy to buy it back. The charcoal bag should be taken out and dried for a week, because it will no longer adsorb when it reaches saturation.

Remember: don't expose yourself to the sun, or it will be absorbed in vain. ...

There is also attention to ventilation, ventilation for a period of time in the morning and evening, and closing doors and windows at other times. This is the correct ventilation method.

The temperature in winter is not so high, and generally it can't reach its release temperature, so if it is a newly renovated house, it is best to let it bask in the sun in summer. You can find the municipal epidemic prevention station of Shanxi Environmental Protection Bureau, but the price is higher.