0 not having had any pleasant-smelling substances added to it:
To disinfect water, add one-eighth of a teaspoon of plain, unscented household bleach per gallon of water.
If you're susceptible to bladder infections, bathe in plain water and use an unscented soap.
Traps were filled to a depth of 4 cm with a 25% ethylene glycol solution and a small amount of unscented detergent.
The plant bears loose umbels of 6 (but may be up to 15) upright, unscented, shallow trumpet-shaped flowers, that blossom under partial sunlight.
The flowers open successively and are up to 25 mm in diameter, these are unscented.
Some kinds of direct-burning incense are created from incense blanks made of unscented combustible dust immersed into any suitable kind of essential or fragrance oil.