The best computer keyboard cleaning spray is the one that lifts dust from under the keys without soaking the switches, because a wet keyboard is a dead keyboard. Crumbs in the keycaps are a familiar sight at a home desk by the 9 a.m. call. We compared four keyboard cleaning sprays, including foaming anti-static sprays, a multisurface kit and a compressed air duster, by stated size, formula, extras and warranty, using only what each listing publishes.
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Quick picks
Best Overall Endust 10oz + Towel: 10 oz anti-static foaming spray with a 16 by 16 in microfiber towel Check price on Amazon
Best Anti-Static Spray Endust 10oz: 10 oz foaming spray with no ammonia, alcohol, oil or wax Check price on Amazon
Best Spray Kit MiracleSpray 8oz Kit: 8 oz multisurface kit with a plush microfiber towel Check price on Amazon
Best Air Duster iDuster Air Duster: 10 oz compressed air for dust in tight spaces Check price on Amazon
The picks
| # | Product | Office Score | Buy |
|---|---|---|---|
| 1 | Endust 10oz + Towel | 9.6/10 | Buy on Amazon |
| 2 | Endust 10oz | 9.6/10 | Buy on Amazon |
| 3 | MiracleSpray 8oz Kit | 9.6/10 | Buy on Amazon |
| 4 | iDuster Air Duster | 9.4/10 | Buy on Amazon |
Endust 10oz + Towel
A 10-ounce anti-static foaming spray bundled with an extra-large 16 by 16 inch microfiber towel.
Pros
- Anti-static formula helps reduce static and dust buildup
- Contains no ammonia, alcohol, oil or wax
- Includes an extra-large 16 by 16 inch microfiber towel
- Lists a 30 day manufacturer warranty
Cons
- Only 30 days of manufacturer warranty
- Pink color is stated without explanation
- No brush or keycap puller is included in the bundle
- Aerosol format only, no compressed-air option
Detailed Review
Endust lists this bundle as a 10-ounce anti-static foaming spray with an extra-large 16 by 16 inch microfiber towel. The formula contains no ammonia, alcohol, oil or wax, and the directions say to turn equipment off, let it cool, shake the can, hold it upright and spray in short bursts. The spec table gives a 30 day manufacturer warranty and a pink color.
Who it's for: desk workers who want an anti-static spray and a large towel in one order. Who should skip it: anyone who already owns microfiber towels and only needs the spray.
Its Office Score of 9.6/10 comes from performance 30/35, build 21/25, value 21/25, safety 5/10 and warranty 1/5: 78 of 100 points, placed on our 9.2 to 9.8 scale.
Key Specifications
| Size | 10 fl oz |
|---|---|
| Towel | 16 x 16 in microfiber |
| Formula | Anti-static, foaming |
| Warranty | 30 day manufacturer |
Figures as published on the retailer listing, collected 23 October 2026. Performance figures are manufacturer rated.
Safety and Warranty
What this listing states. Anti-static formula; contains no ammonia, alcohol, oil or wax., so safety scores 5 of 10. 30 day manufacturer. It does not say everything a buyer needs, such as who pays return shipping, so warranty scores 1 of 5. See How We Pick.
Follow the manual. Assemble and use the product as the maker describes, stay under any stated capacity, and read the manual before first use.
This is general buying information, not professional advice. Follow each product manual and local rules, and see our Safety Disclaimer.
Pros
- Anti-static formula helps reduce static and dust buildup
- Contains no ammonia, alcohol, oil or wax
- Streak and residue free, per the title
- Fresh scent is stated
Cons
- No towel is included in this listing
- No warranty term is stated
- Fresh scent may not suit scent-sensitive users
- 10 ounces only; no larger size is listed
Detailed Review
Endust lists this 10-ounce aerosol as an anti-static foaming spray with a fresh scent. It contains no ammonia, alcohol, oil or wax. The directions say to turn equipment off, let it cool completely, shake well, hold upright and spray in short bursts, then wipe with a lint-free cloth or microfiber towel until dry.
Who it's for: buyers who want the anti-static formula without paying for a bundled towel. Who should skip it: anyone who needs a towel in the box or a stated warranty.
Its Office Score of 9.6/10 comes from performance 29/35, build 21/25, value 21/25, safety 5/10 and warranty 0/5: 76 of 100 points, placed on our 9.2 to 9.8 scale.
Key Specifications
| Size | 10 fl oz |
|---|---|
| Formula | Anti-static, foaming |
| Scent | Fresh |
| Finish | Streak and residue free |
Figures as published on the retailer listing, collected 23 October 2026. Performance figures are manufacturer rated.
Safety and Warranty
What this listing states. Anti-static formula; contains no ammonia, alcohol, oil or wax., so safety scores 5 of 10. No warranty term, so warranty scores zero. See How We Pick.
Follow the manual. Assemble and use the product as the maker describes, stay under any stated capacity, and read the manual before first use.
This is general buying information, not professional advice. Follow each product manual and local rules, and see our Safety Disclaimer.
MiracleSpray 8oz Kit
An 8-ounce multisurface electronics spray kit with a plush microfiber towel.
Pros
- Listed as safe for LCD, LED, CRT and OLED displays
- Includes a plush microfiber towel
- Works on TVs, phones, monitors and keyboards
- Streak-free shine is claimed
Cons
- Spec table lists Unit Count as 16 fluid ounces while the title and liquid volume say 8 fluid ounces
- No warranty term is stated
- No anti-static formula is stated
- Only 8 fluid ounces, less than the 10-ounce picks
Detailed Review
MiracleSpray lists an 8-ounce electronics cleaning kit with a plush microfiber towel, safe for LCD, LED, CRT and OLED displays. The directions say to attach the sprayer, apply the cleaner to the cloth and wipe until clean. The spec table lists the unit count as 16 fluid ounces while the title and liquid volume say 8 fluid ounces, so the 8-ounce figure is the one to trust.
Who it's for: buyers who clean screens as well as keyboards and want a complete kit. Who should skip it: anyone who needs an anti-static formula or a stated warranty.
Its Office Score of 9.6/10 comes from performance 29/35, build 21/25, value 20/25, safety 5/10 and warranty 0/5: 75 of 100 points, placed on our 9.2 to 9.8 scale.
Key Specifications
| Size | 8 fl oz |
|---|---|
| Includes | Microfiber towel |
| Model | 0449 |
| Displays | LCD, LED, CRT, OLED |
Figures as published on the retailer listing, collected 23 October 2026. Performance figures are manufacturer rated.
Safety and Warranty
What this listing states. Safe for delicate LCD, LED, CRT and OLED displays., so safety scores 5 of 10. No warranty term, so warranty scores zero. See How We Pick.
Follow the manual. Assemble and use the product as the maker describes, stay under any stated capacity, and read the manual before first use.
This is general buying information, not professional advice. Follow each product manual and local rules, and see our Safety Disclaimer.
iDuster Air Duster
A 10-ounce disposable compressed air duster for blowing dust from tight spaces.
Pros
- Strong, steady stream of air for hard-to-reach areas
- Works on CPUs, keyboards, mice and workstations
- Disposable can, no batteries or charging
- Lists a 90-day manufacturer warranty
Cons
- Air only; does not remove smudges or fingerprints
- Disposable can with no refill option stated
- No anti-static claim is stated
- 10 ounces only; no larger size is listed
Detailed Review
iDuster lists a 10-ounce disposable compressed air duster for dislodging dust and debris from hidden areas in electronics. The bullets name CPUs, keyboards, mice, workstations, lab equipment and repair stations. The spec table gives a manufacturer warranty for 90 days from date of purchase.
Who it's for: buyers who want dry dust removal from tight spaces without any liquid. Who should skip it: anyone who needs to clean smudges, fingerprints or sticky residue.
Its Office Score of 9.4/10 comes from performance 28/35, build 20/25, value 19/25, safety 0/10 and warranty 1/5: 68 of 100 points, placed on our 9.2 to 9.8 scale.
Key Specifications
| Size | 10 fl oz |
|---|---|
| Type | Compressed air |
| Model | DS-10-1P-f-VC |
| Warranty | 90 days |
Figures as published on the retailer listing, collected 23 October 2026. Performance figures are manufacturer rated.
Safety and Warranty
What this listing states. This product does not plug in or run on a battery, so safety is not part of its score. Manufacturer warranty for 90 days from date of purchase. It does not say everything a buyer needs, such as who pays return shipping, so warranty scores 1 of 5. See How We Pick.
Follow the manual. Assemble and use the product as the maker describes, stay under any stated capacity, and read the manual before first use.
This is general buying information, not professional advice. Follow each product manual and local rules, and see our Safety Disclaimer.
As an Amazon Associate I earn from qualifying purchases.
Compare the picks
| Cleaner | Office Score | Size | Type | Anti-Static | Warranty | Amazon |
|---|---|---|---|---|---|---|
| Endust 10oz + Towel | 9.6/10 | 10 fl oz + towel | Foaming spray | Yes | 30 day | View on Amazon |
| Endust 10oz | 9.6/10 | 10 fl oz | Foaming spray | Yes | Not stated | View on Amazon |
| MiracleSpray 8oz Kit | 9.6/10 | 8 fl oz | Spray + towel | Not stated | Not stated | View on Amazon |
| iDuster Air Duster | 9.4/10 | 10 fl oz | Compressed air | Not stated | 90 days | View on Amazon |
Specifications are manufacturer rated as listed, collected 23 October 2026. Two of the four state a warranty term.
How we scored them
The Office Score weighs performance (cleaning formula, size and extras), build, value for the stated specs, safety and warranty. For cleaning sprays, safety means a stated anti-static formula or a stated safe-for-displays claim; the two Endust listings state an anti-static formula and the MiracleSpray states safe use on delicate displays, while the iDuster states neither. Two listings state a warranty term: iDuster at 90 days and the Endust bundle at 30 days. How we pick explains the weights.
| Product | Office Score | Perf. /35 | Build /25 | Value /25 | Safety /10 | Warranty /5 |
|---|---|---|---|---|---|---|
| Endust 10oz + Towel | 9.6 | 30 | 21 | 21 | 5 | 1 |
| Endust 10oz | 9.6 | 29 | 21 | 21 | 5 | 0 |
| MiracleSpray 8oz Kit | 9.6 | 29 | 21 | 20 | 5 | 0 |
| iDuster Air Duster | 9.4 | 28 | 20 | 19 | 0 | 1 |
Scores run from 9.2 to 9.8: each product’s point total is placed on that range, so more points always means a higher score.
How to choose the best computer keyboard cleaning spray
Spray or air: pick the cleaning method
Compressed air moves loose dust; liquid spray dissolves smudges. The iDuster is listed for dislodging dust from hidden and hard-to-reach areas in CPUs, keyboards and mice. The three sprays wipe smudges, debris and fingerprints from screens and keys with a cloth. If your keys are dusty but not sticky, air alone may be enough; for oily fingerprints, pick a spray. A keyboard dust cover cuts down on how often you need either.
Anti-static and ammonia-free formulas
Static attracts dust back to the keys. The two Endust sprays state an anti-static formula and list no ammonia, alcohol, oil or wax. The MiracleSpray is listed as safe for LCD, LED, CRT and OLED displays. The iDuster makes no anti-static claim.
| Cleaner | Anti-static | Ammonia-free |
|---|---|---|
| Endust 10oz + Towel | Yes | Yes |
| Endust 10oz | Yes | Yes |
| MiracleSpray 8oz Kit | Not stated | Not stated |
| iDuster Air Duster | Not stated | Not stated |
Check the size and what comes in the box
The Endust sprays and the iDuster are 10 fluid ounces; the MiracleSpray is 8 fluid ounces. The MiracleSpray kit and the Endust bundle include a microfiber towel; the other two do not. If you already own towels, the towel-free Endust saves the extra. For grime under the keycaps, see our mechanical keyboard keycaps guide.
Read the warranty line
The iDuster lists a manufacturer warranty for 90 days from date of purchase. The Endust bundle lists a 30 day manufacturer warranty. The MiracleSpray and the Endust 10-ounce spray state no warranty term.
Setup Notes
- Turn equipment off and let it cool completely before cleaning, per the Endust directions.
- Hold the Endust can upright, shake well and spray in short bursts, then wipe with a lint-free cloth or microfiber towel until dry.
- Apply the MiracleSpray to the included microfiber cloth, not directly on the screen, per its directions.
- Use the iDuster for dust in hard-to-reach areas around keys and vents; it is a disposable 10-ounce can.
Frequently Asked Questions
What is the best way to clean under keyboard keys?
The iDuster is listed for dislodging dust from hidden and hard-to-reach areas in electronic devices like keyboards. For sticky residue, a spray on a microfiber cloth works better than air.
Do these sprays work on screens too?
Yes. The MiracleSpray is listed for LCD, LED, CRT and OLED displays, and the Endust sprays list TVs, monitors, tablets and phones among their uses.
Which of these has the longest warranty?
The iDuster lists a manufacturer warranty for 90 days from date of purchase. The Endust bundle lists 30 days; the other two state no warranty term.
Are these sprays safe for all electronics?
The Endust listings state no ammonia, alcohol, oil or wax. The MiracleSpray is listed as safe for delicate LCD, LED, CRT and OLED displays.
How much cleaner comes in each bottle?
The Endust sprays and the iDuster are 10 fluid ounces each. The MiracleSpray kit is 8 fluid ounces.
Related guides
See every keyboards guide and all monitor mounts, keyboards and mice guides. Also see our best keyboard dust cover. Also see our best mechanical keyboard keycaps.
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