Washable air filters are typically transported and packaged in protective packaging that is designed to prevent damage during shipping. They can be packed in boxes, bags, or other containers that protect the filter media and frames from moisture, dust, and other contaminants. This ensures that the filter arrives at its destination in good condition and is ready to use.

Washable air filters are tested for quality and performance using a variety of methods and standards. They are typically tested for efficiency in trapping particles, pressure drop, and air flow rate. They may also be tested for their ability to resist damage from water, chemicals, or other substances that may come into contact with the filter media and frames. These tests ensure that washable air filters are effective, efficient, and durable.