Reticulated foams are used where porosity, surface area, low density are important.
* Puppets (such as the bodies/faces/hands of The Muppets)
* Humidifier pads
* Air conditioner filters
* Scrubbers 
* Ceramic filters for filtering molten metal
* Vehicle and bacteria filters
* Speaker grills
* Face mask and pads
* Outdoor cushions
* Marine seating
* Shoe polish and cosmetic applicators
* Ink jet cartridges
* Aquaculture (water purification)
* Anti-slosh filling in fuel tanks for aircraft (such as the A-10 Thunderbolt II) and race cars