5 Products on Deep Discount in March

Expect larger than average discounts on string trimmers, vacuums, air purifiers, and more

An illustration of a window, vacuum cleaner, and air purifier with sales tags Illustration: Lacey Browne/Consumer Reports

March is the first month of the year without a major shopping holiday, but there are still opportunities to find savings on something you may need right now. Retailers typically use this month to off-load the previous year’s inventory to make room for new products, which translates to savings for shoppers.

CR’s experts track pricing for every product we test to determine how often items go on sale and when they’re at their best price. In particular, our research has shown that air purifiers and vacuums (including robotic vacuums) tend to be especially affordable this month. Seasonal items, such as space heaters and string trimmers, are often discounted as well, as retailers jump-start sales on spring items.

Vacuum Cleaners

March tends to see a proliferation of vacuum cleaner sales as people start to think more about spring cleaning and allergy season. Vacuums are among a handful of products that are always going on sale, but this month you can expect to see even deeper discounts than usual, making it an ideal time to finally replace your old one with an upgrade to something better.

More on Shopping and Saving

There are so many different kinds of vacuums to choose from that it can be daunting to find the best option for your home. To help you decide, review our vacuum cleaner buying guide as well as our ratings to select the best brand and model for your budget.

Check out the following vacuum deals.

Black+Decker DustBuster Ion Handheld Vacuum
The deal: $38 to $40 at Amazon and Walmart
CR’s test results: Black+Decker DustBuster Ion HHVI315JO42
This is a top-notch handheld vacuum that’s great at cleaning bare floors and pet hair, and earns a high rating for carpet. The crevice tool and dust brush are separate and not combination tools like those on other Black+Decker handhelds. Despite its impressive performance, the lack of an indicator light on this cordless vacuum makes it difficult to know whether it’s fully charged when you’re using it.

Eufy RoboVac 11S
The deal: $160 at Amazon
CR’s test results: Eufy RoboVac 11s
The Eufy RoboVac 11s cleans carpet well in our tests and leaves very little pet hair. It does even better on bare floors. Though it’s not the most efficient cleaner—testers note that it sometimes scatters debris—it eventually gets the job done, operates quietly, and has a cliff sensor so it won’t tumble down stairs. This robotic vacuum isn’t WiFi-enabled and can’t be used with a smartphone app. You’ll save $70 off the usual price right now.

Kenmore Elite Pet Friendly Canister Vacuum
The deal:
$380 at Amazon
CR’s test results: Kenmore Elite Pet Friendly UltraPlush 81714
The Kenmore Elite Pet Friendly UltraPlush canister vacuum is indeed friendly to pet owners, earning a high score in our test for removing pet hair. It’s also a champ at cleaning bare floors and a solid performer at cleaning carpet, making it a smart choice if you have a combination of flooring. It makes the grade in our emissions test, but in terms of noise, there are quieter choices. Strong airflow through the hose makes it a good choice if you use attachments often. Kenmore canisters earn average scores for both predicted reliability and owner satisfaction in our member survey.

LG A9 Kompressor Stick Vacuum
The deal: $600 at Abt Electronics and Best Buy
CR’s test results: LG A9 Kompressor
The LG A9 Kompressor lands near the top of our list of worthy contenders in its category. It aces our carpet, bare-floors, and pet-hair tests, and leaves nothing behind when you vacuum along the edges of a room. It’s not quite as quiet as some of its competitors, but it won’t bother you during short bursts of cleanup. It runs for almost a full half-hour on one battery charge. Better yet, it comes with two batteries. Because LG is a relatively new entrant to this category, we don’t yet have enough data to rate its cordless vacs for reliability.

Air Purifiers

You may be able to find air purifiers on sale in March, perfect timing for the spring cleaning season. They’re great if you or someone in your household has asthma or is allergic to airborne allergens like dust or pet dander.

In addition to looking at the purchase price of a room air purifier, you’ll want to factor in its operating costs. You could spend $150 to $200 per year on filter replacements and electricity.

To reduce those costs, seek out energy-efficient models (check for Energy Star certification) and washable filters. Choosing a large unit and running it at a lower speed will keep the noise down. Use a higher speed to clean a large room quickly.

To understand more about what to look for and how much to pay, check out our air purifier buying guide and ratings.

Check out the following deals on air purifiers.

Blueair Portable Air Purifier
The deal:
$430 at Amazon
CR’s test results: Blueair Classic 605
If you’re looking for a workhorse of an air purifier, the Blueair is a great option. It has been on sale for a few months, but recently dropped another $80. It’s one of the top models CR has tested, earning high marks for removing dust, smoke, and pollen. It’s easy and intuitive to use, and runs quietly on its lowest speeds—but it’s one of the noisier models when running at full blast. Filter replacements can be pricey, but this air purifier has an indicator to let you know when it’s time to change or clean the filters.

Honeywell Portable Air Purifier
The deal:
$200 at Amazon and Walmart
CR’s test results: Honeywell HPA300
This air purifier, which is $50 off right now, got high marks in CR’s tests for low-speed particle removal and high-speed performance. But like the models above, the Honeywell is a bit noisy, and the replacement air filter prices and operating costs are relatively high.

String Trimmers

Though we usually see seasonal items go on sale toward the end of their respective season, there are often preseason sales if you start shopping early. If you’re a lawn-care enthusiast, you’ll be happy to know you can find big discounts on string trimmers in March.

The ideal string trimmer will be able to trim, edge, and cut tall grass with ease, and you can find many top-rated gas, electric, and battery-powered models that handle those tasks. Gas-powered trimmers can handle bigger jobs; electric models tend to be better for smaller properties, and they’re quieter. Corded trimmers are the most affordable of the bunch but may require extension cords. Battery-powered models tend to give you about 30 minutes on a single charge, which should be good if you have a small property. Otherwise, you may need additional batteries.

Not sure what’s right for you? Read our string trimmer buying guide for lots of different options for different needs.

Space Heaters

As temperatures go up outside, the price of space heaters goes down, making March a great time to grab a good deal. Look for a model that oscillates and has a fan, which will help distribute heat more quickly. It’s also important to buy a space heater that has safety features that prevent the risk of a fire, such as a sensor that will turn it off if it overheats or falls over, especially if you plan to use it in your office.

Perhaps the most exciting news is that the models with the strongest performance in temperature control, safety, and noise typically cost less than $100, so sales will make them a great investment for any budget.

It might be good to check out the options with our buying guide to find which is best for you. That way you’ll be prepared to buy when the model you want goes on sale.

Replacement Windows

This month is a good time to invest in replacement windows. This project can help insulate your home, making it easier to keep things cool indoors during the summer months and warm in the winter. Plus, CR has been tracking window prices for years and our data shows that prices tend to dip this month, which is perfect because this sort of project can take months to finish.

Upgrading your windows isn’t going to be a cheap undertaking, so you may as well take advantage of any opportunity to save on materials. Opting for just replacement windows, as long as your sills and frames are in good condition, is a good start. But if you have to replace everything, the cost will go up. Getting Energy Star certified windows offers another way to save on your energy bills. And there may even be local or state rebates or incentives you can take advantage of as well.

But before you can buy new windows, you’ll want to do your research. Consult CR’s buying guide, which goes over everything from choosing the right windows and materials to finding the right installer. CR has rated 14 different double-hung replacement windows for wind and rain resistance.

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Head shot of CR Shopping Deals Editor Samantha Gordon

Samantha B. Gordon

I am an avid writer, editor, and consumer with an unusually deep love for finding amazing deals on amazing products, especially when those things can make my life, or yours, a little easier. When I'm not critiquing deals to find the best of the best, you can find me crafting on a barstool with a fancy cocktail or editing a science fiction novel (also with a cocktail). Follow me on Twitter (@sam_the_editor).