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Eureka Boss Smart-Vac Upright HEPA Vacuum Cleaner, 4870MZ

3.7 out of 5 stars 1,270 customer reviews
| 78 answered questions

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  • Top rated by a leading consumer publication
  • Onboard tools and stretch hose for above-floor cleaning; 30ft power cord
  • Wide 15-inch cleaning path provides faster results; 3-stage dust trap system
  • Motorized brush; 7-height adjustable brushroll; HEPA filtration system
  • Upright vacuum with 12-amp motor cleans carpets and hard floors
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Product Description

Package Quantity: 1

Product Description

The BOSS SMART VAC captures dirt other cleaners don't and on more surfaces. This model has an Eureka patented SEALED HEPA system . A system that filters all the fine dirt through the HEPA filter for cleaner indoor air. It comes complete with on-board tools and a Power Paw Turbo that's designed for vertical cleaning of stairs and upholstery. When the unit is on in an upright position it is designed for the brushroll not to spin. This setup is designed to protect the consumer's carpet. It is possible to re-position the tab that switches from barefloors to carpets in the "upright position". The tab is intended to move only when the unit is moved out of its upright position.

Top rated by a leading consumer publication


Let's face it. Most vacuums just don't cut it when it comes to really cleaning a home or office. Pesky pet hair embeds deeper in carpet than traditional vacuums go; bits and pieces of tracked-in dirt and debris hunker down under floor trim just out of reach of the latest brush innovations, rendering us to the silliness of handpicking behind that expensive vacuum, filling our pockets with lint, and wondering--who's really the boss? Troubles like these made the folks at Eureka get down and dirty and, ultimately, design the Boss Smart-Vac Upright Vacuum.

Offering powerful performance for everyday household cleaning, the Eureka Boss is the solution for people who insist on having a truly clean home. The Boss's Direct Air Control System features an air selector switch that lets you direct all suction either deep into the carpet or to the hose for easy above-the-floor cleaning.

The Power Paw brush makes it easy to clean stairs and upholstery, and even claws up embedded pet hair, so Fido can spend more time inside. The motorized brush lets you go from carpet to bare-floor cleaning with the flick of a switch. The Boss Smart-Vac is powered by a beefy, 12-amp motor that provides plenty of suction power for deep-cleaning carpets, and leaves nothing behind on hard floors.

Captures Dirt on More Surfaces

Pretty smart, right? Well, here's the really smart part. The Boss Smart-Vac isn't just the best household carpet- and floor-cleaning vacuum on the market; it's also equipped with a unique, sealed, HEPA filtration system that captures 99.97 percent of dust, pollen, allergens, and bacteria. So, vacuuming the house doesn't mean you have to dust afterward, or sneeze while you're doing it. Cleaner carpets and cleaner indoor air at the same time.

Ideal for people who need to reduce allergens in the home

Plus, the Boss comes loaded with user-friendly features to take the frustration out of vacuuming. A wide 15-inch cleaning path covers a lot of ground quickly before company comes. In addition, the exclusive dust trap system captures debris and dust in three stages. A handy stretch hose extends to five times its original length for reaching around furniture and sucking the cobwebs off the ceiling. And, a 30-foot cord won't leave you coming up short. The bare floor brush is designed to smoothly glide across wood and tile floors while picking up more dust and debris in corners and along baseboards than any other model. One extra Type-R belt and one bonus bag come included. The vacuum cleaner measures 12 by 15 by 44 inches and carries a one-year limited warranty.

Easy Cleaning Steps

1. For bare floor cleaning, push brush roll control lever firmly to lock in "bare floor" setting to stop brush roll.
2. Turn height adjustment knob to bare floor position.
3. If brush roll still rotates, control lever is not engaged properly.
4. Loosen hose end from back of vacuum.
5. Place tool on end of wand or hose.

Getting the Best Results

• This vacuum cleaner creates suction and contains a revolving brush roll. Keep hair, loose clothing, fingers, and all parts of body away from openings and moving parts.

• Do not place vacuum cleaner on furniture or stairs as the brush roll may cause damage. Use extra care when cleaning on stairs. Place vacuum cleaner on floor with the handle in storage position while using attachments.

• Do not use without dust bag, motor filter and HEPA filter in place.

• Remove hair and threads from brush roll periodically.

• This vacuum cleaner has a special thermostat that protects the vacuum in case of motor overheating. If the vacuum suddenly shuts off, push the power switch to off and unplug the vacuum. Check the vacuum for a possible source of overheating such as a full dust bag, blocked hose, clogged tubes or clogged filter. If these conditions are found, fix them and wait at least 30 minutes before attempting to use the vacuum. After the 30 minute period, plug the vacuum back in and turn on the switch.

Product Features

Hose Wrap
Hose Wrap
Easily wraps at the back of this upright vacuum and allows to wind the cord to store with ease

Riser Visor
Riser Visor
The riser visor tool has a rotating cover over the brush roll and is ideal for cleaning staircases

HEPA Filtration
HEPA Filtration
This model has a Eureka patented sealed HEPA system, that filters all the fine dirt through the HEPA filter for cleaner indoor air

Cleaning Controls
Cleaning Controls
Designed to work well on all surfaces including carpets and bare floors

Power Paw
Power Paw
A motorized handheld power tool with specially designed pet hair rubber. Ideal for staircase and upholstery cleaning

On Board Tools
On Board Tools
This vacuum is equipped with a nested extension wand, a crevice tool and a dusting brush for cleaning all surfaces

Eureka 4870MZ - Suction
Great Suction

High power suction picks up dirt from carpets and upholstery

Eureka 4870MZ - Reach
Extra Reach

The nested extension wand allows you to clean hard to reach areas with ease

Eureka 4870MZ - Stairs
Simple Stair Cleaning

The hose expand 5 times its original size allowing you to clean your staircase without carrying the vacuum along

Eureka 4870MZ - Airflow Switch
Airflow Control Switch

Choose between hose cleaning and floor cleaning easily by rotating the switch

Eureka 4870MZ - Riser Visor
Riser Visor

The riser visor tool is ideal to clean staircases including the edges and hard to reach areas

Eureka 4870MZ - Cleaning Path
15 Inch Cleaning Path

The wide 15-inch cleaning path covers a lot of ground quickly

Product Information

Package Quantity:1
Product Dimensions 12 x 15 x 44 inches
Item Weight 21.5 pounds
Shipping Weight 25.5 pounds
Department Large Appliances
Manufacturer Eureka
Item model number 4870MZ
Customer Reviews
3.7 out of 5 stars 1,270 customer reviews

3.7 out of 5 stars
Best Sellers Rank #213,409 in Home and Kitchen (See Top 100 in Home and Kitchen)
#241 in Home & Kitchen > Vacuums & Floor Care > Vacuums > Upright Vacuums

Technical Specification

Warranty & Support

Product Warranty: For warranty information about this product, please click here [PDF ]


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Customer Questions & Answers

Customer Reviews

Top Customer Reviews

By Glenn Dudley on April 30, 2008
Item Package Quantity: 1 Verified Purchase
Although most the reviews are for the 4870GZ and I bought the 4870MZ, I suspect the machines are basically the same so I won't repeat what others have already said about it except to say this is a solid machine with excellent suction and it did a great job on my carpets, both deep cleaning and returning the nap to a plush feel.

I'm writing to say that, contrary to many reviews, the Power Paw does in fact attach to the vacuum. At least mine does. It comes with a clear plastic cover that attaches to the vacuum just below the top D-handle. If you look closely you'll find the mating point. You then simply clip the paw into the cover and it stores on the handle.

Also, contrary to some reviews, the bare floor setting works fine. You just need to press the tab hard until you hear a click and it engages. The brush is then disabled for bare floor vacuuming.

I really wanted to justify a Dyson but at 1/3 the price, this machine is all that I need. I'm extremely satisfied with the purchase.
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**second update - 4 years later and still working great.

**Update to the below review** It is two years later and my vacuum cleaner is still working great and I still love it! The power paw attachment is great for vacuuming the stairs - we have two sets and it is easier to use the power paw than balance my canister vac on the stairs.

My 12 yr old Sharp upright gave up the ghost so I needed a new upright for upstairs. I read a lot of reviews here and at e-pinions and decided on this Eureka. First I will say it is very important to read all of the manual, because it actually addresses some of the issues people have with this vacuum, such as: (1) this machine is no heavier than my old one, but people complain it is heavy and hard to maneuver - the maneuverability and "heaviness" of it are greatly improved if one selects the proper brush height. Set it too low and yes, you will be struggling to pull this vacuum back toward you. The first time I used it OMG - it was quite a workout. I figured when I vacuumed I would count that as my upper body workout! Then I read the manual and duh! I raised the brush height one notch and what a difference. It's not light as a feather, but much better. (2) people complain that the brush roll stop (hard floor) switch is hard to move. The manual says it will be easier to move if the machine is on, the handle is released and you rock the machine back so there is no weight on the front wheels. It is hard if you try to move it otherwise. (3) the foot pedal for the handle release is pretty stiff, but if you find the "sweet spot" it's fine - just have to experiment with where to push. On my machine the hard part is getting the handle locked back up.
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My wife and I have been around the block a time or two and, as with many of you, have been through our share of vacuums over the years. I'm here to tell you this one works.
Stay away from the TV "infomercials" plugging no-name vacs and making outlandish claims. Remember the old saying, "if it sounds to good to be true, it probably is". Trust the "trusted" names.
Eureka has been around a long time. We checked Consumer Reports before investing in a new upright vac. They listed 3 as being excellent buys. 2 were Kenmores and the third was the Eureka 4870 series. The letters at the end of the model don't mean much (the MZ has the "power brush", but the 4870 is important. The ratings of all 3 vacs were basically the same, but the Eureka was half the price.
The sucking power is incredible. It's not the quietest unit in the world, but I'll gladly trade that for the job it does. Right after buying this vac, someone (we have many young, devilish grandchildren), put eggshells in my wife's washing machine (front-load). The shells got into the front seal of the washer, as well as all through the dryer before we saw them. I took the crevice attachment of the Eureka and cleaned both machines out completely in the blink of an eye. By the way, I've seen complaints that the new "power brush" doesn't work. We've had no problem with this attachment. In fact, it's been everything Eureka says it is. If you don't want to try it, there are several other versions of the 4870 that offer the traditional brush instead. We're very happy with this unit.
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I researched for several months before making this purchase and i'm very happy with this vacuum. Cleans exceptionally well and the power paw is great for picking up cat hair. The HEPA system actually works because I don't sneeze at all while vacuuming and I have chronic allergies. (It made me realize how poorly my hoover upright worked. And it was only 2 1/2 years old.) Yes, it's a little heavy, but every vacuum that has strong suction is. I guess it's because of the large amp motor. If you have pets, you won't be dissapointed. The only thing I wished it had was an automatic cord rewind. But for the price, I have no problem living without it. My last eureka lasted me 10 years, and when I finally got rid of it, it was because It was so beat-up, but it still worked great. Not the case with my 2 1/2 year old Hoover. This unit is a great deal for the money.
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