| Rotten food and harmful gases like freon have to be removed from this debris. |
| For one thing, we can now cool the materials with freon, using ordinary household air-conditioning technology. |
| He was working on freon and accidentally polymerised tetrafluoroethylene. |
| Mechanical contractors, through various unions, are providing free services to remove freon from flood-damaged appliances before they are taken to landfills. |
| As a result, the sites contain hazardous materials ranging from old fridges containing freon, which scientists say depletes the ozone layer, to old propane tanks. |
| Fred Landay, owner, says that with appliances containing freon that cannot be resold, Appliance Disposal extracts the freon with the help of a licensed technician. |
