What is capture-at-source filtration and why does it matter?

Source capture uses a hood, arm or enclosure to intercept contaminants close to their point of generation, before they spread through the work area. Effectiveness depends on hood geometry, position, airflow, cross-drafts and the process. It is not a blanket guarantee of exposure control or energy savings; see our source-capture engineering guide for the design questions to review.

What is the difference between a fume extractor and an ambient air cleaner?

A fume extractor uses a hood or arm to capture emissions near a process, while an ambient cleaner treats residual particulate after it has dispersed. Ambient treatment may supplement source capture, but is not a substitute for it. Confirm contaminants, filter capability and the exhaust or recirculation path for the actual installation.

Privacy, Cookies & Enquiry Data

1. Who we are

Shandong Yuchuan Environmental Protection and Energy Saving Technology Co., Ltd. ("we", "us") operates this website to provide product information and respond to export enquiries for industrial air filtration and dust collection equipment. Our registered location is Environmental Protection Industrial Park, Zhangqiu District, Jinan, Shandong Province, China.

For any privacy question, or to exercise the rights described below, contact us at info@hanxvonfluid.cn.

2. Information we collect

Information you provide. When you submit the enquiry form we receive the name, email address, company, country, phone number, product of interest and the message you type. Providing these details is voluntary, but we cannot prepare a quotation without enough information about your application.

Attribution and technical data. Alongside your message we record which page you were on, the referring page, your browser language, and campaign parameters such as UTM tags or advertising click identifiers when they are present in the link you followed. Our web server and content delivery network also process standard technical data (IP address, user agent, requested URL, timestamp) to deliver the site and prevent abuse.

We do not ask for, and ask you not to send, sensitive personal data or payment card details through the enquiry form.

3. Why we use it, and our legal basis

Answering your enquiry — preparing a quotation, recommending equipment and corresponding with you. We rely on steps taken at your request before entering a contract, and on our legitimate interest in responding to business enquiries.
Operating and securing the site — hosting, caching, preventing spam and abuse. This is our legitimate interest in keeping the service available and safe.
Measuring and improving the site — analytics and advertising measurement. Where the law requires it (including the EU and UK), we do this only after you give consent, and you can withdraw that consent at any time.

We do not sell your personal information, and we do not use enquiry data for automated decision-making or profiling that produces legal effects.

4. Cookies and consent

We keep cookies to a minimum:

Strictly necessary — a session cookie for the password-protected administration area, and a local preference that remembers your cookie choice. These are required for the site to work and are not used for tracking.
Optional analytics and advertising — Google Analytics / Google Ads, Google Tag Manager, Meta Pixel and LinkedIn Insight Tag, but only if they have been enabled by the site owner and only after you select "Accept all". Google tags run in Consent Mode v2: until you consent, storage is denied and only limited, cookieless measurement pings may be sent. Meta and LinkedIn tags are not loaded at all until consent.

You can change your choice at any time with the "Cookie settings" link in the footer, or by clearing this site's data in your browser. Rejecting optional cookies does not affect your ability to browse products or send an enquiry.

5. How long we keep information

Enquiry records are kept for as long as needed to handle your request, maintain a business relationship and satisfy applicable accounting or legal obligations, after which they are deleted or anonymised. Server and security logs are retained for a shorter, limited period. You may ask us to delete your enquiry earlier using the contact address above.

6. Who we share it with

We use a small number of service providers to run the site. They act on our instructions and may only process data for the purposes described here:

Hosting and content delivery — the managed application host and Cloudflare (CDN, TLS and bot protection).
Email delivery — our transactional email provider, used to deliver your enquiry to our sales mailbox and to let us reply to you.
Analytics and advertising — Google, Meta and LinkedIn, only when optional cookies are enabled and you have consented.

We may also disclose information if required by law or to protect our rights, and in connection with a business reorganisation, subject to appropriate safeguards.

7. International transfers

We are based in China and our sales team accesses enquiry data there. Some providers process data in other countries, including the United States and the European Union. Where a transfer requires it, we rely on appropriate safeguards such as standard contractual clauses and provider commitments, and we limit what is shared to what is necessary for the service.

8. Your rights

Depending on where you live, you may have the right to access, correct, delete or restrict the use of your personal information, to object to processing based on legitimate interests, to receive a copy in a portable format, and to withdraw consent at any time. If you are in the EEA or UK you also have the right to complain to your local supervisory authority. To make a request, email info@hanxvonfluid.cn; we will respond within the period required by applicable law.

9. Security

The site is served over HTTPS. Access to the administration area is password-protected, and enquiry data is not published publicly. No internet transmission is completely secure, but we use reasonable technical and organisational measures to protect the information we hold.

10. Changes to this notice

We may update this policy as the site or our providers change. The "Last updated" date above shows the current version. Material changes will be reflected on this page.

11. Contact

Shandong Yuchuan Environmental Protection and Energy Saving Technology Co., Ltd.
Environmental Protection Industrial Park, Zhangqiu District, Jinan, Shandong Province, China
Email: info@hanxvonfluid.cn
Phone: +86 531 8351 6866

Privacy Policy