Crystal Cruises has announced plans to convert 70 staterooms into hypoallergenic suites this fall and make them available to guests at no additional cost.

It’s a seven-step transformation that will include everything from a floor-to-ceiling deep-clean that removes bio films, dirt and bacteria to a high ozone shock treatment to eliminate germs and odors.

For prevention and maintenance, a “bacteriostatic barrier” will be applied to every surface of the rooms, from light switches and TV screens to countertops and artwork to repel micro-organism growth for up to two years, the company says.

Rooms are also outfitted with state-of-the-art air purification systems and allergy-friendly bedding. Suites will be prepared and disinfected by the same outfit that has worked with luxury hotel properties such as the SLS Beverly Hills, the Park Hyatt Toronto, and Fairmont Chicago.