Do these come in an air tight packaging?
These do come in sealed packaging, but they are not vacuumed-sealed and technically cannot be considered 100% air-tight, though close.
How long do the filters last when you are using them? I’m just trying to figure out what the cost is going to be overtime.
There's no set time as it's entirely dependent on multiple factors, such as how often you use them, the type of application you're using them for, the amount of exposure they are getting, and the amount of filtering they are doing. It's best to order multiple pairs and test the longevity of 1 pair to get an approximation of how long before you need to change them out
What are the recommended applications?
The protection types are Asbestos, Mold and Silica. The Recommended Applications are → Assembly & Mechanical, Brazing, Chemical Manufacturing, Cleaning, Composite Finishing, Final Finish, Manufacturing, Metal Pouring, Paint Preparation, Painting, Pesticide Application, Petrochemical, Powder Charging, Powder Coating, Pulp & Paper, Remediation, Sanding, Soil Preparation, Soldering, Spray Coating, Torch Cutting, Welding, Wood Processing
What are the recommended industries?
The recommended industries are → Construction, Design & Construction, Facility Sanitation, Food Processing, Food Safety, General Manufacturing, Heavy Infrastructure, Industrial Maintenance, Marine, Metal Production & Fabrication, Mining, Oil & Gas, Transportation