Cleaning a lens ???

What is the best way to clean a lens cause ive this brand new laser but if i make the dot big i see little circles inside it and i hate that !!!

Show how can i clean the lens ??? ( water and a lilbit of soap or acetone ) ???

I find that compressed air works well. You can also try lens cleaning pen. Amazon.com: Digital Camera Camcorder Lens Cleaning Pen: Camera & Photo

The best method I have found and used for ages, is a cotton swab
and alcohol.

Make small single swipes and rotate the q-tip to a fresh
spot for every 'swipe'.

Never rub back and forth...

When I have had diodes that need a cleaning, I go through
7-8 q-tips, both sides for a single cleaning.

Some people prefer lenspen's, but personally I find a fresh
q-tip and pure alcohol does the trick every time..

thank you =)