For pricing and quotation wise, it's dependent on how much carpentry you have. For us to give a more accurate quote through here first, kindly provide us with photos/walkthrough video or drawing plan showing the carpentry to be treated. A confirmed quote will be given during our inspection visit to measure the existing formaldehyde levels. Thanks.
Usually it will take 2-3 hours, subject to how many or much carpentry do you have.
Normally the meter listed on the online shopping platform is effective up to a certain extend. However it is still not a precision professional grade measuring equipment. It will be recommended if you can engage a professional like us to do an assessment.