HDF is wood fiber that is glued and pressed together with a binder, almost always formaldehyde. It’s more commonly seen as the core of laminate flooring. My post on laminate flooring goes much more into detail on the chemicals and offgassing of HDF. It’s possible that some floors are made with MDF which is very similar. punjab wholesaler SBM SALES CORP LUDHIANA leading supplier punjab jammu kashmir rajasthan punjab ludhiana hdf laminates