What is a disadvantage of dusts?

What is a disadvantage of dusts?

• A. They can drift and are easily inhaled.
• B. They never drift and are safe to inhale.
• C. They dissolve instantly in air.
• D. They are always waterproof.

Answer: (A)

Dusts are fine powders, so they can easily become airborne and drift with air currents. This makes them likely to be inhaled by people or pets and to settle on unintended surfaces, creating exposure risks and reducing targeted effectiveness. Because a portion of the product may drift away, you may not get even coverage where you want pests controlled. Dusts don’t dissolve in air and aren’t inherently waterproof, so they don’t stay put or wash away consistently, which further complicates safe and effective use.

Dusts are fine powders, so they can easily become airborne and drift with air currents. This makes them likely to be inhaled by people or pets and to settle on unintended surfaces, creating exposure risks and reducing targeted effectiveness. Because a portion of the product may drift away, you may not get even coverage where you want pests controlled. Dusts don’t dissolve in air and aren’t inherently waterproof, so they don’t stay put or wash away consistently, which further complicates safe and effective use.