To maintain whites bright, soak in an oxygen depending purifier rather then depending basically on bleach

https://troykltv272.clearminster.com/posts/the-role-of-dry-cleaning-in-allergy-friendly-garment-care

To keep whites vibrant, soak in an oxygen based mostly purifier rather then depending only on bleach. Oxygen recommendations are gentler on many fabrics and decrease yellowing through the years.