What insects are the eggs on the glass door of the balcony at home? Some are at the air outlet of the air purifier, and some are on the curtains. What kind of insect is this?

According to the information you provided, the eggs on the balcony glass door may be the eggs of moths or mealybugs.

Both bark beetles and bark beetles are common pests, and they often live and breed in wood, especially in decorative angle wood and plywood. The eggs of these pests are usually white, oval and relatively small, and usually attach to the surface of wood or form wormways in wood.

These moths and mealybugs may fly in the air, or be blown by the wind to the air outlet and curtains of the air purifier, so their eggs may also be found in these places.

In order to prevent the harm of moths and mealybugs, the following measures can be taken:

1. Clean the home environment regularly, especially the dust and sundries in corners and gaps.

2. The decorative corner materials and plywood are treated with insect repellent, such as painting insect repellent paint or using insect repellent.

3. Regularly check the wood surface and corners at home for signs of moth and mealybug activities, and take preventive measures in time if found.

4. Regular use of special pesticides for preventive pest control at home to prevent the harm of moths and mealybugs.