★★★★★ 5
Very cold
Color: 01 - Light Grey
Super cold
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Reviewed in the United States on February 25, 2026
NG30 Matthews Spray Droplet
Marsoni
M251S
Get it in 3 business days with 1 day shipping.
Friday, May 29
NG30 Matthews Spray DropletPattern NG30 Description Matthews Spray Droplet Sizing Key features Eyepiece Reticle with Dots ranging from 0. 050mm (50m) to 0. 400mm (400m). For size and distribution assessments of aerosol droplets. Used with 4x objective for direct measurements of droplets groups of 50, 100, 200 and 400 microns diameter. W. H. O. and G. A. Mathews. Imperial College. Glass Type and Thickness Soda Lime 1. 5mm thick Diameter Tolerance +0 0. 1mm Orientation Correct
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Your NG30 Matthews Spray Droplet orders ship within 1-2 business days.
Delivery Options:
- Standard: 3-7 business days
- Fast: 2-3 business days
- Express: 1-2 business days
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
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4.0 ★★★★★
Based on 727 reviews
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Product Reviews
★★★★★ 5
Cool pillow vase
Color: 01 - Light Grey
Nice cool material and stays kn the pillow well due to the snaps.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 21, 2026
★★★★★ 3
Ugly
Color: 01 - Light Grey
The light blue color looks like a hospital gown. Keeps cool but I don't think I can bear looking at it.
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Reviewed in the United States on May 9, 2026
★★★★★ 5
Cooling pillowcase
Color: 01 - Light Grey
These cooling pillowcases are fabulous. I just have one complaint they snap at the end instead of having a zipper, which could be uncomfortable if you’re laying on that snap. Also, it’s very hard to unfasten.
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Reviewed in the United States on December 5, 2025
★★★★★ 5
Comfy and cooling pillow cases for sleeping
Color: 01 - Light Grey, Color: 01 - Light Grey
Cooling cover for my pillow, great quality and super soft. Helps with my sleep. Have eye mask as a gift too. Highly recommended.
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Reviewed in the United States on December 28, 2025
