Do window PE sunshades need deep cleaning?

The following is an objective analysis on whether the window PE sunshade needs to be deeply cleaned, with several points explained:

1. Deep cleaning is usually unnecessary and carries high risks
Material characteristic limitations: PE (polyethylene) itself is a plastic substrate, with a smooth and pore free surface that is not easily permeable to dirt. Daily floating ash can be removed with clean water without the need for deep treatment.
Structural vulnerability: Sunshades usually have fine pores, seams, or coatings, and deep cleaning can easily cause tearing of the openings, delamination of the seams, and peeling of the coating.
Chemical corrosion risk: Strong cleaning agents (such as oxygen purifiers and bleach) can damage the molecular structure of PE and accelerate aging and brittleness.

2. Three resolute ways to avoid "deep cleaning"

3. Special situations that truly need to be addressed
Only the following scenarios require enhanced cleaning, but it still does not count as deep cleaning:
Kitchen oil fume disaster area: There is a sticky oil film on the curtain surface when touched → Use warm water+3 drops of detergent soft cloth to gently wipe in one direction and immediately rinse off.
After rainstorm, mud is splashed: the mud spot dries up → the back of the shower is washed with low pressure, and the front is pressed and absorbed with a wet sponge to avoid friction.
Severe mold growth (humid areas in the south): Gently pat the mold spots with white vinegar water (vinegar: water=1:15) → thoroughly rinse off the vinegar within 5 minutes.

4. Daily maintenance replaces deep cleaning

5. When should we consider replacing it directly?
Abandon cleaning and replace immediately if the following situations occur:
The curtain body is brittle, folded and broken (irreversible aging)
Large scale mold stains infiltrate into the interior of the material
After cleaning, the fabric shows white mist like corrosion marks