Does in addition to formaldehyde pay IQ tax? In the renovation of new houses, in order to move in quickly, apart from formaldehyde companies, the key is to find a professional. There are many in addition to formaldehyde companies in the market, with many methods and uneven technologies. Some companies are easy to repeat after governance. Therefore, when looking for aldehyde removal companies, we must keep our eyes open and carefully screen them to avoid being deceived.