These photographs contains a very typical example of what moisture/water vapor in the air looks like when it it is iluminated by a digital camera's flash.

Many will confuse these anomalies as orbs.  These however, are not orbs.  The tell-tale signs are:

• Crystaline structure
• Hollow or see-through in nature
• Warm or light colors (yellow, grey, white, etc)

What you are actually seeing is the partially atomized water molecules reflecting the light of the flash back to the camera.  Rain tends to look similar but the drops appear to be much more solid and defined.

Note also that quality and/or age of the camera has little to do with this.  The first picture above was taken in July of 2008 with a 5.1MP Cannon set on the highest resolution and image quality settings and the remaining 5 were taken in 2001 with a 1.3MP Sony Cybershot.