Class 019
Non-Metallic Building Material Products
Air filters for industrial purposes; air filters for industrial use; filters for air purifiers; air filters for use in the construction industry; air filters for use in the abatement industry; air filters for use in the construction or remodeling of healthcare facilities; air filters for use in the construction or remodeling of cleanrooms.
Class 027
Floor Covering products
Plastic wallboards; multilayer panels of plastic for use in building; plastic reinforced wall panels for use as sound and light barriers; plastic building boards; multilayer panels of plastic for use in construction; environmental control barriers and enclosures, namely, plastic wall systems used for environmental separation and containment in the construction industry and abatement industry; corrugated plastic sheeting for protecting walls, windows, and floors; corrugated plastic panels for use as wall and ceiling components.