My favorite Dyson vacuum busts dirt and dust with ease, and it's $180 off ahead of Prime Day

If you've been looking to buy a cordless vacuum, now is a great time to do so: The excellent Dyson V15 Detect Plus Cordless Vacuum -- the one with a laser that can reveal microscopic allergens and measure how many particles it's picking up -- is currently $570 at Amazon, even a few days before Prime Day kicks off on July 8. 

Also: The best Amazon Prime Day deals live now 

That's a $180 savings on one of Dyson's premium (and popular) vacuum cleaners. This isn't the best price I've seen for this vacuum (it was on sale for $200 back in February during Presidents' Day), but it is the closest discount I've seen offered on it since. 

I splurged on a Dyson V15 Detect vacuum over a year ago, and it's been one of my favorite home purchases. It has a ...