Ergodyne Chill-Its 6670CT Review (2026)
Affiliate disclosure: As an Amazon Associate, WC Safety earns from qualifying purchases at no extra cost to you. We stock this product; commissions do not influence our review.
★★★★½ 4.5/5
Reviewed by Steven Eaton, WC Safety Editorial
| Brand | Ergodyne |
|---|---|
| Category | Hard Hat Cooling Accessory |
| Construction (per listing) | Evaporative cooling hard hat neck shade; hi-vis lime; clips to hard hat |
| Typical price | $16.39 |
| Model | 6670CT |
The Ergodyne Chill-Its 6670CT is a hard hat cooling accessory from Ergodyne, stocked at $16.39 — built as clip-on evaporative neck shade in hi-vis lime. It's the pick for road, rail, roofing, and utility crews working under direct sun in hard hats. This review covers what the listing documents, where it beats its closest rival, and who should buy something else.
Why the Ergodyne Chill-Its 6670CT Stands Out
Road crews and roofers burn the back of the neck first — it's the body part the hard hat shades least and the sun hits longest. The 6670CT clips to the hat brim and drops an evaporative PVA shade over exactly that zone: sun blocking plus active cooling in one attachment, in hi-vis lime that doesn't undercut the visibility program. Soak it at the cooler like a towel.
Specification and Configuration
What the listing commits to: evaporative cooling hard hat neck shade; hi-vis lime; clips to hard hat. Claims beyond that — lab numbers, endurance figures, certifications the listing doesn't state — don't appear in this review, because we don't invent them. Size and color options run on the linked Amazon listing rather than as separate stocked variants.
Cooling gear splits by method and body zone: evaporative gear is cheap and rechargeable at any water source but fades in humidity; phase-change holds a fixed temperature anywhere; wicking gear manages sweat rather than actively cooling. The Ergodyne Chill-Its 6670CT is the hard hat cooling accessory entry in that matrix — the full lineup is in our Cooling Gear collection.
Where It Falls Short
Its limits, honestly: Hot-work environments — sparks and standard PVA don't mix; the 6717FR is the FR version of this exact product.
Pros and Cons
Pros
- Evaporative cooling hard hat neck shade
- $16.39 — positioned honestly against its ladder
- From Ergodyne — the reference brand in jobsite cooling
- Listing states its construction claims plainly
Cons
- Single-listing size/color selection happens on Amazon, not as stocked variants
- Hot-work environments
Who Should Buy It
Order the Ergodyne Chill-Its 6670CT if you are road, rail, roofing, and utility crews working under direct sun in hard hats.
Who Should Skip It
Skip it for hot-work environments — sparks and standard PVA don't mix; the 6717FR is the FR version of this exact product.
How It Compares
Same product, two environments: 6670CT for general outdoor work at $16, 6717FR in FR construction for welding and hot work at $21. The only question is whether sparks exist where you work. The Cooling Gear collection carries the complete ladder so you can compare every tier. Head-to-head rival: Ergodyne Chill-Its 6717FR.
Other Options in the Lineup
- Ergodyne Chill-Its 6612
- Ergodyne Chill-Its 6717FR
- Ergodyne Chill-Its 6715CT
- Ergodyne Chill-Its 6614
- Ergodyne Chill-Its 6602
- Ergodyne Chill-Its 6602MF
- Ergodyne Chill-Its 6606FR
- Ergodyne Chill-Its 6603
- Ergodyne Chill-Its 6700CT
Jobsite PPE Guides
- Best Cooling Gear Buyer's Guide
- Construction Site PPE Guide
- Best Hard Hats for Construction
- Best Hi-Vis Shirts (hot-weather layer)
- Hi-Vis Safety Apparel Complete Guide
- Best Safety Glasses for Construction Workers
Browse by Category
- Cooling Gear Collection
- Hard Hats
- Head Protection
- Hi-Vis Shirts
- Safety Vests
- Welding Gloves (FR crossover)
Frequently Asked Questions
What is the Ergodyne Chill-Its 6670CT made of?
Per the listing: evaporative cooling hard hat neck shade; hi-vis lime; clips to hard hat. That's the documented construction — anything beyond it belongs to the manufacturer's spec sheet, not this review.
How much does the Ergodyne Chill-Its 6670CT cost?
$16.39 at the linked Amazon listing. Prices track the live listing, and size or color selections there can shift the number.
Ergodyne Chill-Its 6670CT vs Ergodyne Chill-Its 6717FR — which should I buy?
Same product, two environments: 6670CT for general outdoor work at $16, 6717FR in FR construction for welding and hot work at $21. The only question is whether sparks exist where you work.
Who is the Ergodyne Chill-Its 6670CT best for?
Road, rail, roofing, and utility crews working under direct sun in hard hats.
When should I skip the Ergodyne Chill-Its 6670CT?
Hot-work environments — sparks and standard PVA don't mix; the 6717FR is the FR version of this exact product.
What sizes does the Ergodyne Chill-Its 6670CT come in?
The size run (and color options where offered) lives on the linked Amazon listing — we deliberately don't restate it, because listings update. Check the size chart there before ordering.
Is Ergodyne a good brand?
Ergodyne invented the jobsite cooling category with the Chill-Its line and remains its reference brand — it is also one of the most-stocked vendors in our catalog across hi-vis apparel and gloves. Chill-Its model numbers are stable, listings state their cooling method plainly, and the line covers every price tier from $4 bandanas to phase-change systems.
How long does the Ergodyne Chill-Its 6670CT stay cool?
Evaporative gear runs hours per soak, with duration set by heat, airflow, and humidity — then a re-soak restarts it. The operating model is rotation: water source nearby, spare in the cooler.
Does the Ergodyne Chill-Its 6670CT work in high humidity?
Evaporative cooling slows as humidity rises — the same physics that makes sweating feel useless in the swamp. It still helps, but consistently humid climates should look at the phase-change 6260 for the serious intervention.
Is the Ergodyne Chill-Its 6670CT safe around welding or sparks?
No — standard cooling textiles have no flame resistance and don't belong inside a welding jacket or near sparks. Ergodyne makes FR versions (the 6606FR towel and 6717FR neck shade) for exactly that boundary.
How do I clean and store the Ergodyne Chill-Its 6670CT?
Rinse after use, wring, and let it dry fully before storage — PVA stored wet in a sealed container grows mildew. Most Chill-Its pieces machine-wash; follow the care line on the listing.
Does OSHA require cooling gear like the Ergodyne Chill-Its 6670CT?
Federal OSHA enforces heat hazards under the General Duty Clause and a heat National Emphasis Program, with a heat-specific standard in rulemaking; several states (California, Washington, Oregon) have their own heat rules. Water, rest, and shade are the program core — cooling gear is the equipment layer employers add on top, and it should appear in the written heat-illness prevention plan.
Can I wear the Ergodyne Chill-Its 6670CT with hi-vis or other PPE?
Hard-hat cooling accessories are designed around the hat — inserts and pads go inside the suspension, shades clip to the brim. Check ratchet fit after installing anything inside a shell.
What's the cheapest effective heat-stress setup for a small crew?
Water, shade, and scheduled rest cost nothing and come first. The first equipment dollars go to a cooling towel or bandana per worker (under $6 each), then hard-hat inserts for full-shift hat wearers, then vests for the sustained-heat roles. The whole ladder costs less than one heat-illness incident report.
Is the Ergodyne Chill-Its 6670CT reusable season after season?
Yes, with dry storage between uses. Evaporative PVA and wicking textiles last seasons if rinsed and dried; phase-change packs recharge indefinitely. Retire pieces that stay stiff, smell musty, or no longer hold water.
The Bottom Line
The Ergodyne Chill-Its 6670CT does its job at its price: clip-on evaporative neck shade in hi-vis lime at $16.39. Rated 4.5/5 on documented spec, configuration, and value for the intended buyer.
About the Author
Steven Eaton is the founder of WC Safety and an industrial PPE specialist who sources and evaluates jobsite cooling and heat-stress gear for industrial and construction buyers.
How We Review
Reviews draw on the manufacturer's published listing data and the applicable OSHA and ANSI consensus standards. We do not run lab tests or invent specifications; where a listing states no rating, the review says so. Ratings reflect documented spec, configuration, and value.
Affiliate Disclosure
WC Safety is an Amazon Associate and earns commissions on qualifying purchases through links on this page. Affiliate relationships do not influence our ratings.
Editorial Standards
Claims are drawn from listing data and published standards. WC Safety does not invent specifications or test results. Report errors to safetynw2012@gmail.com.
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