---
product_id: 139756895
title: "StonyLab Qualitative Filter Paper Circles, 94mm Diameter Cellulose Filter Paper with 20 Micron Particle Retention Medium Filtration Speed, Pack of 100"
brand: "stonylab"
price: "205 Lei"
currency: RON
in_stock: true
reviews_count: 8
url: https://www.desertcart.ro/products/139756895-stonylab-qualitative-filter-paper-circles-94mm-diameter-cellulose-filter-paper
store_origin: RO
region: Romania
---

# 94mm precision diameter 35-70 sec filtration speed 20 micron particle retention StonyLab Qualitative Filter Paper Circles, 94mm Diameter Cellulose Filter Paper with 20 Micron Particle Retention Medium Filtration Speed, Pack of 100

**Brand:** stonylab
**Price:** 205 Lei
**Availability:** ✅ In Stock

## Summary

> ⚡ Filter smarter, faster, cleaner — don’t get left behind!

## Quick Answers

- **What is this?** StonyLab Qualitative Filter Paper Circles, 94mm Diameter Cellulose Filter Paper with 20 Micron Particle Retention Medium Filtration Speed, Pack of 100 by stonylab
- **How much does it cost?** 205 Lei with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ro](https://www.desertcart.ro/products/139756895-stonylab-qualitative-filter-paper-circles-94mm-diameter-cellulose-filter-paper)

## Best For

- stonylab enthusiasts

## Why This Product

- Trusted stonylab brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Rapid Filtration Speed:** Get your samples filtered in just 35 to 70 seconds—time is money.
- • **Seamless Compatibility:** Optimized for StonyLab Porcelain Buchner Funnels for effortless integration.
- • **Precision 94mm Diameter:** Perfectly sized for consistent, reliable filtration every time.
- • **Low Ash Content ≤0.15%:** Ensures minimal residue, maintaining sample purity and accuracy.
- • **Ultra-Fine 20 Micron Filtration:** Captures even the smallest particles for crystal-clear results.

## Overview

StonyLab Qualitative Filter Paper Circles offer a 94mm diameter cellulose medium with 20 micron particle retention and a fast filtration speed of 35-70 seconds. Designed for precision and purity with low ash content (≤0.15%), these filter papers are ideal for laboratory use and perfectly compatible with StonyLab Porcelain Buchner Funnels. Pack of 100 ensures you’re always ready for your next breakthrough.

## Description

StonyLab Qualitative Filter Paper Circles, 94mm Diameter Cellulose Filter Paper with 20 Micron Particle Retention Medium Filtration Speed, Pack of 100

## Features

- Filter paper diameter: 94mm
- Coarse cellulose filter papers remove particles > 20 µm
- Filtration Speed: 35 - 70 sec
- Ash content: ≤0.15%
- Compatible with StonyLab Porcelain Buchner Funnel

## Product Details

- **Material:** Coarse cellulose
- **Brand:** stonylab
- **Color:** 94mm Diameter
- **Capacity:** 500 Milliliters
- **Product Dimensions:** 3.7"W x 0.94"H

## Images

![StonyLab Qualitative Filter Paper Circles, 94mm Diameter Cellulose Filter Paper with 20 Micron Particle Retention Medium Filtration Speed, Pack of 100 - Image 1](https://m.media-amazon.com/images/I/51tgupmfdZL.jpg)

## Available Options

This product comes in different **Size** options.

## Questions & Answers

**Q: Do your 56mm filter paper fit a diameter outside: 50mm filtration flask?**
A: No _ I had to cut them down ; 50 mm papers seem hard to get 😞

**Q: Do you offer a filter paper to fit a 94 mm buchner that is a smaller micron than 20 ?**
A: Dear Customer,
Sorry, we currently only have filter papers that feature 20 Micron.
Thanks, Lizzy L

**Q: Are these food safe?**
A: Dear Customer,
The item is for laboratory use only.
Thanks, Lizzy L.

**Q: What is the temperature range they will work with and which solvents are compatible?**
A: For my purposes filtering will be done below freezing so wouldn't be much help as far as your question the range of working temp. It is not specified on packaging but filters seem solid

## Customer Reviews

### ⭐⭐⭐⭐⭐ filter good ice cream also good..cigarettes bad
*by L***L on December 26, 2023*

Buchner funnels are indispensable tools in chemistry laboratories, widely employed for vacuum filtration. One crucial component that enhances their efficiency is the paper filter. These filters play a pivotal role in the separation of solids from liquids, offering a range of benefits that significantly contribute to the success of various scientific experiments.Enhanced Filtration EfficiencyOne of the primary advantages of utilizing paper filters in Buchner funnels is the notable improvement in filtration efficiency. The porous structure of paper filters allows for the efficient retention of solid particles while facilitating the passage of liquid through the filter. This ensures a faster and more effective separation process, saving valuable time in the laboratory.Precise Particle RetentionPaper filters exhibit a remarkable ability to retain particles of different sizes with precision. This is particularly important in experiments where the separation of specific particle sizes is critical. The controlled porosity of paper filters enables scientists to tailor their filtration processes according to the requirements of their experiments, ensuring accurate and reliable results.Reduced Risk of ContaminationThe use of paper filters in Buchner funnels helps minimize the risk of contamination in experimental samples. The high-quality materials used in manufacturing these filters, such as cellulose or glass microfiber, provide a clean and inert environment for the filtration process. This is especially crucial in sensitive experiments where even trace contaminants can skew results.Compatibility with a Variety of SubstancesPaper filters are versatile and compatible with a wide range of substances, making them suitable for diverse laboratory applications. Whether filtering aqueous solutions, organic solvents, or suspensions, paper filters exhibit stability and effectiveness across different chemical environments. This versatility makes them a go-to choice for scientists working with various substances in their research.Ease of Use and ConvenienceThe simplicity of incorporating paper filters into Buchner funnels adds to their appeal. The filters are readily available, easy to handle, and require minimal preparation. This convenience not only streamlines laboratory procedures but also enhances the overall user experience. Researchers can focus on the scientific aspects of their work without being burdened by complicated filtration processes.Cost-EffectivenessFrom an economic standpoint, paper filters offer a cost-effective solution for laboratory filtration. Compared to some alternative filtration methods, the affordability of paper filters makes them an attractive choice for researchers working within budget constraints. This cost-effectiveness does not compromise the quality of results, making paper filters a practical and efficient option for a wide range of scientific applications.ConclusionIn conclusion, the integration of paper filters into Buchner funnels brings about a myriad of benefits that significantly contribute to the success of laboratory experiments. From enhanced filtration efficiency and precise particle retention to reduced contamination risks and versatility across different substances, paper filters prove to be indispensable tools in the scientific toolkit. Their ease of use, cost-effectiveness, and overall convenience further underscore their importance in facilitating successful and reliable filtration processes in the realm of laboratory research.

### ⭐⭐⭐⭐⭐ Using for 45mm espresso basket
*by A***R on July 24, 2025*

Seem to work fine. A hard size to come by...

### ⭐⭐⭐⭐⭐ Filters
*by Y***E on June 25, 2025*

Item is as described. Good quality. Fast shipping.

## Frequently Bought Together

- StonyLab Qualitative Filter Paper Circles, 94mm Diameter Cellulose Filter Paper with 20 Micron Particle Retention Medium Filtration Speed, Pack of 100
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*Product available on Desertcart Romania*
*Store origin: RO*
*Last updated: 2026-02-28*