How to Prevent Condensation on Tempered Glass

The moisture in the air collects on the coolest surfaces, typically on windows, mirrors or tempered glass. There are two ways to reduce condensation: One approach is to reduce the humidity and moisture in the home. Another way is to treat the glass directly.

Reduce Humidity

1. Cover large sources of moisture and humidity in the home. This includes radiators, fish tanks and water features. Condensation is caused by excess moisture in the air, so preventing this is a good way to reduce condensation. Any pet supply store will have covers for fish tanks. Other water features can be covered by a piece of plastic, plastic grocery bags or trash bags. Do not put plastic over anything that is heated, such as a radiator. Instead, purchase radiator covers at a local home supply store or build a wooden radiator cabinet.

2. Run a dehumidifier to reduce the humidity. A dehumidifier is designed to remove excess moisture from the air, reducing the humidity and preventing or slowing condensation.

3. Open doors and windows for at least 10 minutes. Ventilating the home allows moisture-rich air to leave the home and drier air to enter. This will also create a stead flow of air through the home, reducing humidity and condensation.

Treat Glass

1. Create a mixture of one part water and one part vinegar. You can mix as little or as much as desired as long as the two liquids are in equal parts.

2. Apply the mixture to tempered glass using a paper towel and wipe the glass thoroughly. The mixture can be sprayed onto the glass or used to wet the paper towel.

3. Wipe the glass with a clean, dry paper towel. Do not leave the glass wet with the mixture. After drying the glass with a paper towel, the glass will resist fogging and a buildup of condensation.